FileDocCategorySizeDatePackage
JTable.javaAPI DocJava SE 6 API358909Tue Jun 10 00:26:38 BST 2008javax.swing

JTable

public class JTable extends JComponent implements TableColumnModelListener, TableModelListener, CellEditorListener, Scrollable, RowSorterListener, ListSelectionListener, Accessible
The JTable is used to display and edit regular two-dimensional tables of cells. See How to Use Tables in The Java Tutorial for task-oriented documentation and examples of using JTable.

The JTable has many facilities that make it possible to customize its rendering and editing but provides defaults for these features so that simple tables can be set up easily. For example, to set up a table with 10 rows and 10 columns of numbers:

TableModel dataModel = new AbstractTableModel() {
public int getColumnCount() { return 10; }
public int getRowCount() { return 10;}
public Object getValueAt(int row, int col) { return new Integer(row*col); }
};
JTable table = new JTable(dataModel);
JScrollPane scrollpane = new JScrollPane(table);

Note that if you wish to use a JTable in a standalone view (outside of a JScrollPane) and want the header displayed, you can get it using {@link #getTableHeader} and display it separately.

To enable sorting and filtering of rows, use a {@code RowSorter}. You can set up a row sorter in either of two ways:

  • Directly set the {@code RowSorter}. For example: {@code table.setRowSorter(new TableRowSorter(model))}.
  • Set the {@code autoCreateRowSorter} property to {@code true}, so that the {@code JTable} creates a {@code RowSorter} for you. For example: {@code setAutoCreateRowSorter(true)}.

When designing applications that use the JTable it is worth paying close attention to the data structures that will represent the table's data. The DefaultTableModel is a model implementation that uses a Vector of Vectors of Objects to store the cell values. As well as copying the data from an application into the DefaultTableModel, it is also possible to wrap the data in the methods of the TableModel interface so that the data can be passed to the JTable directly, as in the example above. This often results in more efficient applications because the model is free to choose the internal representation that best suits the data. A good rule of thumb for deciding whether to use the AbstractTableModel or the DefaultTableModel is to use the AbstractTableModel as the base class for creating subclasses and the DefaultTableModel when subclassing is not required.

The "TableExample" directory in the demo area of the source distribution gives a number of complete examples of JTable usage, covering how the JTable can be used to provide an editable view of data taken from a database and how to modify the columns in the display to use specialized renderers and editors.

The JTable uses integers exclusively to refer to both the rows and the columns of the model that it displays. The JTable simply takes a tabular range of cells and uses getValueAt(int, int) to retrieve the values from the model during painting. It is important to remember that the column and row indexes returned by various JTable methods are in terms of the JTable (the view) and are not necessarily the same indexes used by the model.

By default, columns may be rearranged in the JTable so that the view's columns appear in a different order to the columns in the model. This does not affect the implementation of the model at all: when the columns are reordered, the JTable maintains the new order of the columns internally and converts its column indices before querying the model.

So, when writing a TableModel, it is not necessary to listen for column reordering events as the model will be queried in its own coordinate system regardless of what is happening in the view. In the examples area there is a demonstration of a sorting algorithm making use of exactly this technique to interpose yet another coordinate system where the order of the rows is changed, rather than the order of the columns.

Similarly when using the sorting and filtering functionality provided by RowSorter the underlying TableModel does not need to know how to do sorting, rather RowSorter will handle it. Coordinate conversions will be necessary when using the row based methods of JTable with the underlying TableModel. All of JTables row based methods are in terms of the RowSorter, which is not necessarily the same as that of the underlying TableModel. For example, the selection is always in terms of JTable so that when using RowSorter you will need to convert using convertRowIndexToView or convertRowIndexToModel. The following shows how to convert coordinates from JTable to that of the underlying model:

int[] selection = table.getSelectedRows();
for (int i = 0; i < selection.length; i++) {
selection[i] = table.convertRowIndexToModel(selection[i]);
}
// selection is now in terms of the underlying TableModel

By default if sorting is enabled JTable will persist the selection and variable row heights in terms of the model on sorting. For example if row 0, in terms of the underlying model, is currently selected, after the sort row 0, in terms of the underlying model will be selected. Visually the selection may change, but in terms of the underlying model it will remain the same. The one exception to that is if the model index is no longer visible or was removed. For example, if row 0 in terms of model was filtered out the selection will be empty after the sort.

J2SE 5 adds methods to JTable to provide convenient access to some common printing needs. Simple new {@link #print()} methods allow for quick and easy addition of printing support to your application. In addition, a new {@link #getPrintable} method is available for more advanced printing needs.

As for all JComponent classes, you can use {@link InputMap} and {@link ActionMap} to associate an {@link Action} object with a {@link KeyStroke} and execute the action under specified conditions.

Warning: Swing is not thread safe. For more information see Swing's Threading Policy.

Warning: Serialized objects of this class will not be compatible with future Swing releases. The current serialization support is appropriate for short term storage or RMI between applications running the same version of Swing. As of 1.4, support for long term storage of all JavaBeansTM has been added to the java.beans package. Please see {@link java.beans.XMLEncoder}.

beaninfo
attribute: isContainer false description: A component which displays data in a two dimensional grid.
version
1.289 08/07/07
author
Philip Milne
author
Shannon Hickey (printing support)
see
javax.swing.table.DefaultTableModel
see
javax.swing.table.TableRowSorter

Fields Summary
private static final String
uiClassID
public static final int
AUTO_RESIZE_OFF
Do not adjust column widths automatically; use a scrollbar.
public static final int
AUTO_RESIZE_NEXT_COLUMN
When a column is adjusted in the UI, adjust the next column the opposite way.
public static final int
AUTO_RESIZE_SUBSEQUENT_COLUMNS
During UI adjustment, change subsequent columns to preserve the total width; this is the default behavior.
public static final int
AUTO_RESIZE_LAST_COLUMN
During all resize operations, apply adjustments to the last column only.
public static final int
AUTO_RESIZE_ALL_COLUMNS
During all resize operations, proportionately resize all columns.
protected TableModel
dataModel
The TableModel of the table.
protected TableColumnModel
columnModel
The TableColumnModel of the table.
protected ListSelectionModel
selectionModel
The ListSelectionModel of the table, used to keep track of row selections.
protected JTableHeader
tableHeader
The TableHeader working with the table.
protected int
rowHeight
The height in pixels of each row in the table.
protected int
rowMargin
The height in pixels of the margin between the cells in each row.
protected Color
gridColor
The color of the grid.
protected boolean
showHorizontalLines
The table draws horizontal lines between cells if showHorizontalLines is true.
protected boolean
showVerticalLines
The table draws vertical lines between cells if showVerticalLines is true.
protected int
autoResizeMode
Determines if the table automatically resizes the width of the table's columns to take up the entire width of the table, and how it does the resizing.
protected boolean
autoCreateColumnsFromModel
The table will query the TableModel to build the default set of columns if this is true.
protected Dimension
preferredViewportSize
Used by the Scrollable interface to determine the initial visible area.
protected boolean
rowSelectionAllowed
True if row selection is allowed in this table.
protected boolean
cellSelectionEnabled
Obsolete as of Java 2 platform v1.3. Please use the rowSelectionAllowed property and the columnSelectionAllowed property of the columnModel instead. Or use the method getCellSelectionEnabled.
protected transient Component
editorComp
If editing, the Component that is handling the editing.
protected transient TableCellEditor
cellEditor
The active cell editor object, that overwrites the screen real estate occupied by the current cell and allows the user to change its contents. {@code null} if the table isn't currently editing.
protected transient int
editingColumn
Identifies the column of the cell being edited.
protected transient int
editingRow
Identifies the row of the cell being edited.
protected transient Hashtable
defaultRenderersByColumnClass
A table of objects that display the contents of a cell, indexed by class as declared in getColumnClass in the TableModel interface.
protected transient Hashtable
defaultEditorsByColumnClass
A table of objects that display and edit the contents of a cell, indexed by class as declared in getColumnClass in the TableModel interface.
protected Color
selectionForeground
The foreground color of selected cells.
protected Color
selectionBackground
The background color of selected cells.
private SizeSequence
rowModel
private boolean
dragEnabled
private boolean
surrendersFocusOnKeystroke
private PropertyChangeListener
editorRemover
private boolean
columnSelectionAdjusting
The last value of getValueIsAdjusting from the column selection models columnSelectionChanged notification. Used to test if a repaint is needed.
private boolean
rowSelectionAdjusting
The last value of getValueIsAdjusting from the row selection models valueChanged notification. Used to test if a repaint is needed.
private Throwable
printError
To communicate errors between threads during printing.
private boolean
isRowHeightSet
True when setRowHeight(int) has been invoked.
private boolean
updateSelectionOnSort
If true, on a sort the selection is reset.
private transient SortManager
sortManager
Information used in sorting.
private boolean
ignoreSortChange
If true, when sorterChanged is invoked it's value is ignored.
private boolean
sorterChanged
Whether or not sorterChanged has been invoked.
private boolean
autoCreateRowSorter
If true, any time the model changes a new RowSorter is set.
private boolean
fillsViewportHeight
Whether or not the table always fills the viewport height.
private DropMode
dropMode
The drop mode for this component.
private transient DropLocation
dropLocation
The drop location.
Constructors Summary
public JTable()
Constructs a default JTable that is initialized with a default data model, a default column model, and a default selection model.

see
#createDefaultDataModel
see
#createDefaultColumnModel
see
#createDefaultSelectionModel

        this(null, null, null);
    
public JTable(TableModel dm)
Constructs a JTable that is initialized with dm as the data model, a default column model, and a default selection model.

param
dm the data model for the table
see
#createDefaultColumnModel
see
#createDefaultSelectionModel

        this(dm, null, null);
    
public JTable(TableModel dm, TableColumnModel cm)
Constructs a JTable that is initialized with dm as the data model, cm as the column model, and a default selection model.

param
dm the data model for the table
param
cm the column model for the table
see
#createDefaultSelectionModel

        this(dm, cm, null);
    
public JTable(TableModel dm, TableColumnModel cm, ListSelectionModel sm)
Constructs a JTable that is initialized with dm as the data model, cm as the column model, and sm as the selection model. If any of the parameters are null this method will initialize the table with the corresponding default model. The autoCreateColumnsFromModel flag is set to false if cm is non-null, otherwise it is set to true and the column model is populated with suitable TableColumns for the columns in dm.

param
dm the data model for the table
param
cm the column model for the table
param
sm the row selection model for the table
see
#createDefaultDataModel
see
#createDefaultColumnModel
see
#createDefaultSelectionModel

        super();
        setLayout(null);

	setFocusTraversalKeys(KeyboardFocusManager.FORWARD_TRAVERSAL_KEYS,
			   JComponent.getManagingFocusForwardTraversalKeys());
	setFocusTraversalKeys(KeyboardFocusManager.BACKWARD_TRAVERSAL_KEYS,
			   JComponent.getManagingFocusBackwardTraversalKeys());
        if (cm == null) {
            cm = createDefaultColumnModel();
            autoCreateColumnsFromModel = true;
        }
        setColumnModel(cm);

        if (sm == null) {
            sm = createDefaultSelectionModel();
        }
	setSelectionModel(sm);

    // Set the model last, that way if the autoCreatColumnsFromModel has
    // been set above, we will automatically populate an empty columnModel
    // with suitable columns for the new model.
        if (dm == null) {
            dm = createDefaultDataModel();
        }
	setModel(dm);

        initializeLocalVars();
        updateUI();
    
public JTable(int numRows, int numColumns)
Constructs a JTable with numRows and numColumns of empty cells using DefaultTableModel. The columns will have names of the form "A", "B", "C", etc.

param
numRows the number of rows the table holds
param
numColumns the number of columns the table holds
see
javax.swing.table.DefaultTableModel

        this(new DefaultTableModel(numRows, numColumns));
    
public JTable(Vector rowData, Vector columnNames)
Constructs a JTable to display the values in the Vector of Vectors, rowData, with column names, columnNames. The Vectors contained in rowData should contain the values for that row. In other words, the value of the cell at row 1, column 5 can be obtained with the following code:

((Vector)rowData.elementAt(1)).elementAt(5);

param
rowData the data for the new table
param
columnNames names of each column

        this(new DefaultTableModel(rowData, columnNames));
    
public JTable(Object[] rowData, Object[] columnNames)
Constructs a JTable to display the values in the two dimensional array, rowData, with column names, columnNames. rowData is an array of rows, so the value of the cell at row 1, column 5 can be obtained with the following code:

 rowData[1][5]; 

All rows must be of the same length as columnNames.

param
rowData the data for the new table
param
columnNames names of each column

        this(new AbstractTableModel() {
            public String getColumnName(int column) { return columnNames[column].toString(); }
            public int getRowCount() { return rowData.length; }
            public int getColumnCount() { return columnNames.length; }
            public Object getValueAt(int row, int col) { return rowData[row][col]; }
            public boolean isCellEditable(int row, int column) { return true; }
            public void setValueAt(Object value, int row, int col) {
                rowData[row][col] = value;
                fireTableCellUpdated(row, col);
            }
        });
    
Methods Summary
private voidaccommodateDelta(int resizingColumnIndex, int delta)

        int columnCount = getColumnCount();
        int from = resizingColumnIndex;
        int to = columnCount;

	// Use the mode to determine how to absorb the changes.
	switch(autoResizeMode) {
	    case AUTO_RESIZE_NEXT_COLUMN:
		from = from + 1;
		to = Math.min(from + 1, columnCount); break;
	    case AUTO_RESIZE_SUBSEQUENT_COLUMNS:
		from = from + 1;
		to = columnCount; break;
	    case AUTO_RESIZE_LAST_COLUMN:
		from = columnCount - 1;
		to = from + 1; break;
	    case AUTO_RESIZE_ALL_COLUMNS:
		from = 0;
		to = columnCount; break;
	    default:
		return;
	}

	final int start = from;
	final int end = to;
	final TableColumnModel cm = columnModel;
	Resizable3 r = new Resizable3() {
	    public int  getElementCount()       { return end-start; }
	    public int  getLowerBoundAt(int i)  { return cm.getColumn(i+start).getMinWidth(); }
	    public int  getUpperBoundAt(int i)  { return cm.getColumn(i+start).getMaxWidth(); }
	    public int  getMidPointAt(int i)    { return cm.getColumn(i+start).getWidth(); }
	    public void setSizeAt(int s, int i) {        cm.getColumn(i+start).setWidth(s); }
	};

	int totalWidth = 0;
        for(int i = from; i < to; i++) {
            TableColumn aColumn = columnModel.getColumn(i);
            int input = aColumn.getWidth();
	    totalWidth = totalWidth + input;
        }

        adjustSizes(totalWidth + delta, r, false);

	return;
    
public voidaddColumn(javax.swing.table.TableColumn aColumn)
Appends aColumn to the end of the array of columns held by this JTable's column model. If the column name of aColumn is null, sets the column name of aColumn to the name returned by getModel().getColumnName().

To add a column to this JTable to display the modelColumn'th column of data in the model with a given width, cellRenderer, and cellEditor you can use:


addColumn(new TableColumn(modelColumn, width, cellRenderer, cellEditor));

[Any of the TableColumn constructors can be used instead of this one.] The model column number is stored inside the TableColumn and is used during rendering and editing to locate the appropriates data values in the model. The model column number does not change when columns are reordered in the view.

param
aColumn the TableColumn to be added
see
#removeColumn

        if (aColumn.getHeaderValue() == null) {
	    int modelColumn = aColumn.getModelIndex();
	    String columnName = getModel().getColumnName(modelColumn);
            aColumn.setHeaderValue(columnName);
        }
        getColumnModel().addColumn(aColumn);
    
public voidaddColumnSelectionInterval(int index0, int index1)
Adds the columns from index0 to index1, inclusive, to the current selection.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getColumnCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        columnModel.getSelectionModel().addSelectionInterval(boundColumn(index0), boundColumn(index1));
    
public voidaddNotify()
Calls the configureEnclosingScrollPane method.

see
#configureEnclosingScrollPane

        super.addNotify();
        configureEnclosingScrollPane();
    
public voidaddRowSelectionInterval(int index0, int index1)
Adds the rows from index0 to index1, inclusive, to the current selection.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getRowCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        selectionModel.addSelectionInterval(boundRow(index0), boundRow(index1));
    
private voidadjustSizes(long target, javax.swing.JTable$Resizable3 r, boolean inverse)

	int N = r.getElementCount();
	long totalPreferred = 0;
	for(int i = 0; i < N; i++) {
	    totalPreferred += r.getMidPointAt(i);
	}
	Resizable2 s;
        if ((target < totalPreferred) == !inverse) {
	    s = new Resizable2() {
	        public int  getElementCount()      { return r.getElementCount(); }
	        public int  getLowerBoundAt(int i) { return r.getLowerBoundAt(i); }
	        public int  getUpperBoundAt(int i) { return r.getMidPointAt(i); }
	        public void setSizeAt(int newSize, int i) { r.setSizeAt(newSize, i); }

	    };
	}
	else {
	    s = new Resizable2() {
	        public int  getElementCount()      { return r.getElementCount(); }
	        public int  getLowerBoundAt(int i) { return r.getMidPointAt(i); }
	        public int  getUpperBoundAt(int i) { return r.getUpperBoundAt(i); }
	        public void setSizeAt(int newSize, int i) { r.setSizeAt(newSize, i); }

	    };
	}
	adjustSizes(target, s, !inverse);
    
private voidadjustSizes(long target, javax.swing.JTable$Resizable2 r, boolean limitToRange)

	long totalLowerBound = 0;
	long totalUpperBound = 0;
	for(int i = 0; i < r.getElementCount(); i++) {
	    totalLowerBound += r.getLowerBoundAt(i);
	    totalUpperBound += r.getUpperBoundAt(i);
	}

	if (limitToRange) {
	    target = Math.min(Math.max(totalLowerBound, target), totalUpperBound);
	}

	for(int i = 0; i < r.getElementCount(); i++) {
	    int lowerBound = r.getLowerBoundAt(i);
	    int upperBound = r.getUpperBoundAt(i);
	    // Check for zero. This happens when the distribution of the delta
	    // finishes early due to a series of "fixed" entries at the end.
	    // In this case, lowerBound == upperBound, for all subsequent terms.
	    int newSize;
	    if (totalLowerBound == totalUpperBound) {
	        newSize = lowerBound;
	    }
	    else {
	        double f = (double)(target - totalLowerBound)/(totalUpperBound - totalLowerBound);
		newSize = (int)Math.round(lowerBound+f*(upperBound - lowerBound));
		// We'd need to round manually in an all integer version.
	        // size[i] = (int)(((totalUpperBound - target) * lowerBound +
		//     (target - totalLowerBound) * upperBound)/(totalUpperBound-totalLowerBound));
	    }
	    r.setSizeAt(newSize, i);
	    target -= newSize;
	    totalLowerBound -= lowerBound;
	    totalUpperBound -= upperBound;
	}
    
private intboundColumn(int col)

	if (col< 0 || col >= getColumnCount()) {
	    throw new IllegalArgumentException("Column index out of range");
	}
	return col;
    
private intboundRow(int row)

	if (row < 0 || row >= getRowCount()) {
	    throw new IllegalArgumentException("Row index out of range");
	}
	return row;
    
public voidchangeSelection(int rowIndex, int columnIndex, boolean toggle, boolean extend)
Updates the selection models of the table, depending on the state of the two flags: toggle and extend. Most changes to the selection that are the result of keyboard or mouse events received by the UI are channeled through this method so that the behavior may be overridden by a subclass. Some UIs may need more functionality than this method provides, such as when manipulating the lead for discontiguous selection, and may not call into this method for some selection changes.

This implementation uses the following conventions:

  • toggle: false, extend: false. Clear the previous selection and ensure the new cell is selected.
  • toggle: false, extend: true. Extend the previous selection from the anchor to the specified cell, clearing all other selections.
  • toggle: true, extend: false. If the specified cell is selected, deselect it. If it is not selected, select it.
  • toggle: true, extend: true. Apply the selection state of the anchor to all cells between it and the specified cell.

param
rowIndex affects the selection at row
param
columnIndex affects the selection at column
param
toggle see description above
param
extend if true, extend the current selection
since
1.3

        ListSelectionModel rsm = getSelectionModel();
        ListSelectionModel csm = getColumnModel().getSelectionModel();

        int anchorRow = getAdjustedIndex(rsm.getAnchorSelectionIndex(), true);
        int anchorCol = getAdjustedIndex(csm.getAnchorSelectionIndex(), false);

        boolean anchorSelected = true;

        if (anchorRow == -1) {
            if (getRowCount() > 0) {
                anchorRow = 0;
            }
            anchorSelected = false;
        }

        if (anchorCol == -1) {
            if (getColumnCount() > 0) {
                anchorCol = 0;
            }
            anchorSelected = false;
        }

	// Check the selection here rather than in each selection model.
	// This is significant in cell selection mode if we are supposed
	// to be toggling the selection. In this case it is better to
	// ensure that the cell's selection state will indeed be changed.
	// If this were done in the code for the selection model it
	// might leave a cell in selection state if the row was
	// selected but the column was not - as it would toggle them both.
	boolean selected = isCellSelected(rowIndex, columnIndex);
        anchorSelected = anchorSelected && isCellSelected(anchorRow, anchorCol);

        changeSelectionModel(csm, columnIndex, toggle, extend, selected,
                             anchorCol, anchorSelected);
        changeSelectionModel(rsm, rowIndex, toggle, extend, selected,
                             anchorRow, anchorSelected);

        // Scroll after changing the selection as blit scrolling is immediate,
        // so that if we cause the repaint after the scroll we end up painting
        // everything!
        if (getAutoscrolls()) {
	    Rectangle cellRect = getCellRect(rowIndex, columnIndex, false);
	    if (cellRect != null) {
		scrollRectToVisible(cellRect);
	    }
	}
    
private voidchangeSelectionModel(javax.swing.ListSelectionModel sm, int index, boolean toggle, boolean extend, boolean selected, int anchor, boolean anchorSelected)

        if (extend) {
            if (toggle) {
                if (anchorSelected) {
                    sm.addSelectionInterval(anchor, index);
                } else {
                    sm.removeSelectionInterval(anchor, index);
                    // this is a Windows-only behavior that we want for file lists
                    if (Boolean.TRUE == getClientProperty("Table.isFileList")) {
                        sm.addSelectionInterval(index, index);
                        sm.setAnchorSelectionIndex(anchor);
                    }
                }
	    }
	    else {
		sm.setSelectionInterval(anchor, index);
	    }
        }
	else {
            if (toggle) {
                if (selected) {
                    sm.removeSelectionInterval(index, index);
                }
                else {
                    sm.addSelectionInterval(index, index);
                }
            }
	    else {
                sm.setSelectionInterval(index, index);
            }
        }
    
public voidclearSelection()
Deselects all selected columns and rows.

        selectionModel.clearSelection();
        columnModel.getSelectionModel().clearSelection();
    
private voidclearSelectionAndLeadAnchor()

        selectionModel.setValueIsAdjusting(true);
        columnModel.getSelectionModel().setValueIsAdjusting(true);
        
        clearSelection();

        selectionModel.setAnchorSelectionIndex(-1);
        selectionModel.setLeadSelectionIndex(-1);
        columnModel.getSelectionModel().setAnchorSelectionIndex(-1);
        columnModel.getSelectionModel().setLeadSelectionIndex(-1);

        selectionModel.setValueIsAdjusting(false);
        columnModel.getSelectionModel().setValueIsAdjusting(false);
    
public voidcolumnAdded(javax.swing.event.TableColumnModelEvent e)
Invoked when a column is added to the table column model.

Application code will not use these methods explicitly, they are used internally by JTable.

see
TableColumnModelListener

        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        resizeAndRepaint();
    
public intcolumnAtPoint(java.awt.Point point)
Returns the index of the column that point lies in, or -1 if the result is not in the range [0, getColumnCount()-1].

param
point the location of interest
return
the index of the column that point lies in, or -1 if the result is not in the range [0, getColumnCount()-1]
see
#rowAtPoint

        int x = point.x;
        if( !getComponentOrientation().isLeftToRight() ) {
            x = getWidth() - x;
        }
        return getColumnModel().getColumnIndexAtX(x);
    
public voidcolumnMarginChanged(javax.swing.event.ChangeEvent e)
Invoked when a column is moved due to a margin change. If a cell is being edited, then editing is stopped and the cell is redrawn.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
TableColumnModelListener

	if (isEditing()) {
            removeEditor();
        }
	TableColumn resizingColumn = getResizingColumn();
	// Need to do this here, before the parent's
	// layout manager calls getPreferredSize().
	if (resizingColumn != null && autoResizeMode == AUTO_RESIZE_OFF) {
	    resizingColumn.setPreferredWidth(resizingColumn.getWidth());
	}
	resizeAndRepaint();
    
public voidcolumnMoved(javax.swing.event.TableColumnModelEvent e)
Invoked when a column is repositioned. If a cell is being edited, then editing is stopped and the cell is redrawn.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
TableColumnModelListener

        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        repaint();
    
public voidcolumnRemoved(javax.swing.event.TableColumnModelEvent e)
Invoked when a column is removed from the table column model.

Application code will not use these methods explicitly, they are used internally by JTable.

see
TableColumnModelListener

        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
        resizeAndRepaint();
    
public voidcolumnSelectionChanged(javax.swing.event.ListSelectionEvent e)
Invoked when the selection model of the TableColumnModel is changed.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
TableColumnModelListener

        boolean isAdjusting = e.getValueIsAdjusting();
        if (columnSelectionAdjusting && !isAdjusting) {
            // The assumption is that when the model is no longer adjusting
            // we will have already gotten all the changes, and therefore
            // don't need to do an additional paint.
            columnSelectionAdjusting = false;
            return;
        }
        columnSelectionAdjusting = isAdjusting;
	// The getCellRect() call will fail unless there is at least one row.
	if (getRowCount() <= 0 || getColumnCount() <= 0) {
	    return;
	}
        int firstIndex = limit(e.getFirstIndex(), 0, getColumnCount()-1);
        int lastIndex = limit(e.getLastIndex(), 0, getColumnCount()-1);
        int minRow = 0;
        int maxRow = getRowCount() - 1;
        if (getRowSelectionAllowed()) {
            minRow = selectionModel.getMinSelectionIndex();
            maxRow = selectionModel.getMaxSelectionIndex();
            int leadRow = getAdjustedIndex(selectionModel.getLeadSelectionIndex(), true);

            if (minRow == -1 || maxRow == -1) {
                if (leadRow == -1) {
                    // nothing to repaint, return
                    return;
                }

                // only thing to repaint is the lead
                minRow = maxRow = leadRow;
            } else {
                // We need to consider more than just the range between
                // the min and max selected index. The lead row, which could
                // be outside this range, should be considered also.
                if (leadRow != -1) {
                    minRow = Math.min(minRow, leadRow);
                    maxRow = Math.max(maxRow, leadRow);
                }
            }
        }
        Rectangle firstColumnRect = getCellRect(minRow, firstIndex, false);
        Rectangle lastColumnRect = getCellRect(maxRow, lastIndex, false);
        Rectangle dirtyRegion = firstColumnRect.union(lastColumnRect);
        repaint(dirtyRegion);
    
voidcompWriteObjectNotify()

        super.compWriteObjectNotify();
        // If ToolTipText != null, then the tooltip has already been
        // unregistered by JComponent.compWriteObjectNotify()
        if (getToolTipText() == null) {
            ToolTipManager.sharedInstance().unregisterComponent(this);
        }
    
protected voidconfigureEnclosingScrollPane()
If this JTable is the viewportView of an enclosing JScrollPane (the usual situation), configure this ScrollPane by, amongst other things, installing the table's tableHeader as the columnHeaderView of the scroll pane. When a JTable is added to a JScrollPane in the usual way, using new JScrollPane(myTable), addNotify is called in the JTable (when the table is added to the viewport). JTable's addNotify method in turn calls this method, which is protected so that this default installation procedure can be overridden by a subclass.

see
#addNotify

        Container p = getParent();
        if (p instanceof JViewport) {
            Container gp = p.getParent();
            if (gp instanceof JScrollPane) {
                JScrollPane scrollPane = (JScrollPane)gp;
                // Make certain we are the viewPort's view and not, for
                // example, the rowHeaderView of the scrollPane -
                // an implementor of fixed columns might do this.
                JViewport viewport = scrollPane.getViewport();
                if (viewport == null || viewport.getView() != this) {
                    return;
                }
                scrollPane.setColumnHeaderView(getTableHeader());
		//  scrollPane.getViewport().setBackingStoreEnabled(true);
                Border border = scrollPane.getBorder();
                if (border == null || border instanceof UIResource) {
                    Border scrollPaneBorder = 
                        UIManager.getBorder("Table.scrollPaneBorder");
                    if (scrollPaneBorder != null) {
                        scrollPane.setBorder(scrollPaneBorder);
                    }
                }
            }
        }
    
public intconvertColumnIndexToModel(int viewColumnIndex)
Maps the index of the column in the view at viewColumnIndex to the index of the column in the table model. Returns the index of the corresponding column in the model. If viewColumnIndex is less than zero, returns viewColumnIndex.

param
viewColumnIndex the index of the column in the view
return
the index of the corresponding column in the model
see
#convertColumnIndexToView

        if (viewColumnIndex < 0) {
            return viewColumnIndex;
        }
        return getColumnModel().getColumn(viewColumnIndex).getModelIndex();
    
public intconvertColumnIndexToView(int modelColumnIndex)
Maps the index of the column in the table model at modelColumnIndex to the index of the column in the view. Returns the index of the corresponding column in the view; returns -1 if this column is not being displayed. If modelColumnIndex is less than zero, returns modelColumnIndex.

param
modelColumnIndex the index of the column in the model
return
the index of the corresponding column in the view
see
#convertColumnIndexToModel

        if (modelColumnIndex < 0) {
            return modelColumnIndex;
        }
        TableColumnModel cm = getColumnModel();
        for (int column = 0; column < getColumnCount(); column++) {
            if (cm.getColumn(column).getModelIndex() == modelColumnIndex) {
                return column;
            }
        }
        return -1;
    
private intconvertRowIndexToModel(javax.swing.event.RowSorterEvent e, int viewIndex)

        if (e != null) {
            if (e.getPreviousRowCount() == 0) {
                return viewIndex;
            }
            // range checking handled by RowSorterEvent
            return e.convertPreviousRowIndexToModel(viewIndex);
        }
        // Make sure the viewIndex is valid
        if (viewIndex < 0 || viewIndex >= getRowCount()) {
            return -1;
        }
        return convertRowIndexToModel(viewIndex);
    
public intconvertRowIndexToModel(int viewRowIndex)
Maps the index of the row in terms of the view to the underlying TableModel. If the contents of the model are not sorted the model and view indices are the same.

param
viewRowIndex the index of the row in the view
return
the index of the corresponding row in the model
throws
IndexOutOfBoundsException if sorting is enabled and passed an index outside the range of the JTable as determined by the method getRowCount
see
javax.swing.table.TableRowSorter
see
#getRowCount
since
1.6

        RowSorter sorter = getRowSorter();
        if (sorter != null) {
            return sorter.convertRowIndexToModel(viewRowIndex);
        }
        return viewRowIndex;
    
private intconvertRowIndexToView(int modelIndex, javax.swing.JTable$ModelChange change)
Converts a model index to view index. This is called when the sorter or model changes and sorting is enabled.

param
change describes the TableModelEvent that initiated the change; will be null if called as the result of a sort

        if (modelIndex < 0) {
            return -1;
        }
        if (change != null && modelIndex >= change.startModelIndex) {
            if (change.type == TableModelEvent.INSERT) {
                if (modelIndex + change.length >= change.modelRowCount) {
                    return -1;
                }
                return sortManager.sorter.convertRowIndexToView(
                        modelIndex + change.length);
            }
            else if (change.type == TableModelEvent.DELETE) {
                if (modelIndex <= change.endModelIndex) {
                    // deleted
                    return -1;
                }
                else {
                    if (modelIndex - change.length >= change.modelRowCount) {
                        return -1;
                    }
                    return sortManager.sorter.convertRowIndexToView(
                            modelIndex - change.length);
                }
            }
            // else, updated
        }
        if (modelIndex >= getModel().getRowCount()) {
            return -1;
        }
        return sortManager.sorter.convertRowIndexToView(modelIndex);
    
public intconvertRowIndexToView(int modelRowIndex)
Maps the index of the row in terms of the TableModel to the view. If the contents of the model are not sorted the model and view indices are the same.

param
modelRowIndex the index of the row in terms of the model
return
the index of the corresponding row in the view, or -1 if the row isn't visible
throws
IndexOutOfBoundsException if sorting is enabled and passed an index outside the number of rows of the TableModel
see
javax.swing.table.TableRowSorter
since
1.6

        RowSorter sorter = getRowSorter();
        if (sorter != null) {
            return sorter.convertRowIndexToView(modelRowIndex);
        }
        return modelRowIndex;
    
private int[]convertSelectionToModel(javax.swing.event.RowSorterEvent e)
Converts the selection to model coordinates. This is used when the model changes or the sorter changes.

        int[] selection = getSelectedRows();
        for (int i = selection.length - 1; i >= 0; i--) {
            selection[i] = convertRowIndexToModel(e, selection[i]);
        }
        return selection;
    
protected javax.swing.table.TableColumnModelcreateDefaultColumnModel()
Returns the default column model object, which is a DefaultTableColumnModel. A subclass can override this method to return a different column model object.

return
the default column model object
see
javax.swing.table.DefaultTableColumnModel

        return new DefaultTableColumnModel();
    
public voidcreateDefaultColumnsFromModel()
Creates default columns for the table from the data model using the getColumnCount method defined in the TableModel interface.

Clears any existing columns before creating the new columns based on information from the model.

see
#getAutoCreateColumnsFromModel

        TableModel m = getModel();
        if (m != null) {
            // Remove any current columns
            TableColumnModel cm = getColumnModel();
            while (cm.getColumnCount() > 0) {
                cm.removeColumn(cm.getColumn(0));
	    }

            // Create new columns from the data model info
            for (int i = 0; i < m.getColumnCount(); i++) {
                TableColumn newColumn = new TableColumn(i);
                addColumn(newColumn);
            }
        }
    
protected javax.swing.table.TableModelcreateDefaultDataModel()
Returns the default table model object, which is a DefaultTableModel. A subclass can override this method to return a different table model object.

return
the default table model object
see
javax.swing.table.DefaultTableModel

        return new DefaultTableModel();
    
protected voidcreateDefaultEditors()
Creates default cell editors for objects, numbers, and boolean values.

see
DefaultCellEditor

        defaultEditorsByColumnClass = new UIDefaults(3, 0.75f);

        // Objects
    	setLazyEditor(Object.class, "javax.swing.JTable$GenericEditor");

        // Numbers
        setLazyEditor(Number.class, "javax.swing.JTable$NumberEditor");

        // Booleans
        setLazyEditor(Boolean.class, "javax.swing.JTable$BooleanEditor");
    
protected voidcreateDefaultRenderers()
Creates default cell renderers for objects, numbers, doubles, dates, booleans, and icons.

see
javax.swing.table.DefaultTableCellRenderer

        defaultRenderersByColumnClass = new UIDefaults(8, 0.75f);

        // Objects
        setLazyRenderer(Object.class, "javax.swing.table.DefaultTableCellRenderer$UIResource");

	// Numbers
        setLazyRenderer(Number.class, "javax.swing.JTable$NumberRenderer");

	// Doubles and Floats
        setLazyRenderer(Float.class, "javax.swing.JTable$DoubleRenderer");
        setLazyRenderer(Double.class, "javax.swing.JTable$DoubleRenderer");

	// Dates
	setLazyRenderer(Date.class, "javax.swing.JTable$DateRenderer");

        // Icons and ImageIcons
        setLazyRenderer(Icon.class, "javax.swing.JTable$IconRenderer");
        setLazyRenderer(ImageIcon.class, "javax.swing.JTable$IconRenderer");

        // Booleans
        setLazyRenderer(Boolean.class, "javax.swing.JTable$BooleanRenderer");
    
protected javax.swing.ListSelectionModelcreateDefaultSelectionModel()
Returns the default selection model object, which is a DefaultListSelectionModel. A subclass can override this method to return a different selection model object.

return
the default selection model object
see
javax.swing.DefaultListSelectionModel

        return new DefaultListSelectionModel();
    
protected javax.swing.table.JTableHeadercreateDefaultTableHeader()
Returns the default table header object, which is a JTableHeader. A subclass can override this method to return a different table header object.

return
the default table header object
see
javax.swing.table.JTableHeader

        return new JTableHeader(columnModel);
    
public static javax.swing.JScrollPanecreateScrollPaneForTable(javax.swing.JTable aTable)
Equivalent to new JScrollPane(aTable).

deprecated
As of Swing version 1.0.2, replaced by new JScrollPane(aTable).

        return new JScrollPane(aTable);
    
public voiddoLayout()
Causes this table to lay out its rows and columns. Overridden so that columns can be resized to accomodate a change in the size of a containing parent. Resizes one or more of the columns in the table so that the total width of all of this JTable's columns is equal to the width of the table.

Before the layout begins the method gets the resizingColumn of the tableHeader. When the method is called as a result of the resizing of an enclosing window, the resizingColumn is null. This means that resizing has taken place "outside" the JTable and the change - or "delta" - should be distributed to all of the columns regardless of this JTable's automatic resize mode.

If the resizingColumn is not null, it is one of the columns in the table that has changed size rather than the table itself. In this case the auto-resize modes govern the way the extra (or deficit) space is distributed amongst the available columns.

The modes are:

  • AUTO_RESIZE_OFF: Don't automatically adjust the column's widths at all. Use a horizontal scrollbar to accomodate the columns when their sum exceeds the width of the Viewport. If the JTable is not enclosed in a JScrollPane this may leave parts of the table invisible.
  • AUTO_RESIZE_NEXT_COLUMN: Use just the column after the resizing column. This results in the "boundary" or divider between adjacent cells being independently adjustable.
  • AUTO_RESIZE_SUBSEQUENT_COLUMNS: Use all columns after the one being adjusted to absorb the changes. This is the default behavior.
  • AUTO_RESIZE_LAST_COLUMN: Automatically adjust the size of the last column only. If the bounds of the last column prevent the desired size from being allocated, set the width of the last column to the appropriate limit and make no further adjustments.
  • AUTO_RESIZE_ALL_COLUMNS: Spread the delta amongst all the columns in the JTable, including the one that is being adjusted.

Note: When a JTable makes adjustments to the widths of the columns it respects their minimum and maximum values absolutely. It is therefore possible that, even after this method is called, the total width of the columns is still not equal to the width of the table. When this happens the JTable does not put itself in AUTO_RESIZE_OFF mode to bring up a scroll bar, or break other commitments of its current auto-resize mode -- instead it allows its bounds to be set larger (or smaller) than the total of the column minimum or maximum, meaning, either that there will not be enough room to display all of the columns, or that the columns will not fill the JTable's bounds. These respectively, result in the clipping of some columns or an area being painted in the JTable's background color during painting.

The mechanism for distributing the delta amongst the available columns is provided in a private method in the JTable class:

adjustSizes(long targetSize, final Resizable3 r, boolean inverse)
an explanation of which is provided in the following section. Resizable3 is a private interface that allows any data structure containing a collection of elements with a size, preferred size, maximum size and minimum size to have its elements manipulated by the algorithm.

Distributing the delta

Overview

Call "DELTA" the difference between the target size and the sum of the preferred sizes of the elements in r. The individual sizes are calculated by taking the original preferred sizes and adding a share of the DELTA - that share being based on how far each preferred size is from its limiting bound (minimum or maximum).

Definition

Call the individual constraints min[i], max[i], and pref[i].

Call their respective sums: MIN, MAX, and PREF.

Each new size will be calculated using:

size[i] = pref[i] + delta[i]
where each individual delta[i] is calculated according to:

If (DELTA < 0) we are in shrink mode where:

DELTA
delta[i] = ------------ * (pref[i] - min[i])
(PREF - MIN)
If (DELTA > 0) we are in expand mode where:

DELTA
delta[i] = ------------ * (max[i] - pref[i])
(MAX - PREF)

The overall effect is that the total size moves that same percentage, k, towards the total minimum or maximum and that percentage guarantees accomodation of the required space, DELTA.

Details

Naive evaluation of the formulae presented here would be subject to the aggregated rounding errors caused by doing this operation in finite precision (using ints). To deal with this, the multiplying factor above, is constantly recalculated and this takes account of the rounding errors in the previous iterations. The result is an algorithm that produces a set of integers whose values exactly sum to the supplied targetSize, and does so by spreading the rounding errors evenly over the given elements.

When the MAX and MIN bounds are hit

When targetSize is outside the [MIN, MAX] range, the algorithm sets all sizes to their appropriate limiting value (maximum or minimum).

	TableColumn resizingColumn = getResizingColumn();
	if (resizingColumn == null) {
            setWidthsFromPreferredWidths(false);
	}
        else {
            // JTable behaves like a layout manger - but one in which the
            // user can come along and dictate how big one of the children
            // (columns) is supposed to be.

            // A column has been resized and JTable may need to distribute
            // any overall delta to other columns, according to the resize mode.
	    int columnIndex = viewIndexForColumn(resizingColumn);
	    int delta = getWidth() - getColumnModel().getTotalColumnWidth();
	    accommodateDelta(columnIndex, delta);
	    delta = getWidth() - getColumnModel().getTotalColumnWidth();
            
            // If the delta cannot be completely accomodated, then the
            // resizing column will have to take any remainder. This means
            // that the column is not being allowed to take the requested
            // width. This happens under many circumstances: For example,
            // AUTO_RESIZE_NEXT_COLUMN specifies that any delta be distributed
            // to the column after the resizing column. If one were to attempt
            // to resize the last column of the table, there would be no
            // columns after it, and hence nowhere to distribute the delta.
            // It would then be given entirely back to the resizing column,
            // preventing it from changing size.
	    if (delta != 0) {
		resizingColumn.setWidth(resizingColumn.getWidth() + delta);
	    }

            // At this point the JTable has to work out what preferred sizes
            // would have resulted in the layout the user has chosen.
            // Thereafter, during window resizing etc. it has to work off
            // the preferred sizes as usual - the idea being that, whatever
            // the user does, everything stays in synch and things don't jump
            // around.
            setWidthsFromPreferredWidths(true);
	}

	super.doLayout();
    
javax.swing.JTable$DropLocationdropLocationForPoint(java.awt.Point p)
Calculates a drop location in this component, representing where a drop at the given point should insert data.

param
p the point to calculate a drop location for
return
the drop location, or null

        DropLocation location = null;

        int row = rowAtPoint(p);
        int col = columnAtPoint(p);
        boolean outside = Boolean.TRUE == getClientProperty("Table.isFileList")
                          && SwingUtilities2.pointOutsidePrefSize(this, row, col, p);

        Rectangle rect = getCellRect(row, col, true);
        Section xSection, ySection;
        boolean between = false;
        boolean ltr = getComponentOrientation().isLeftToRight();

        switch(dropMode) {
            case USE_SELECTION:
            case ON:
                if (row == -1 || col == -1 || outside) {
                    location = new DropLocation(p, -1, -1, false, false);
                } else {
                    location = new DropLocation(p, row, col, false, false);
                }
                break;
            case INSERT:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, 0, 0, true, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);

                if (row == -1) {
                    if (xSection == LEADING) {
                        location = new DropLocation(p, getRowCount(), col, true, true);
                    } else if (xSection == TRAILING) {
                        location = new DropLocation(p, getRowCount(), col + 1, true, true);
                    } else {
                        location = new DropLocation(p, getRowCount(), col, true, false);
                    }
                } else if (xSection == LEADING || xSection == TRAILING) {
                    ySection = SwingUtilities2.liesInVertical(rect, p, true);
                    if (ySection == LEADING) {
                        between = true;
                    } else if (ySection == TRAILING) {
                        row++;
                        between = true;
                    }
                    
                    location = new DropLocation(p, row,
                                                xSection == TRAILING ? col + 1 : col,
                                                between, true);
                } else {
                    if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
                        row++;
                    }

                    location = new DropLocation(p, row, col, true, false);
                }

                break;
            case INSERT_ROWS:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (row == -1) {
                    location = new DropLocation(p, getRowCount(), col, true, false);
                    break;
                }

                if (SwingUtilities2.liesInVertical(rect, p, false) == TRAILING) {
                    row++;
                }

                location = new DropLocation(p, row, col, true, false);
                break;
            case ON_OR_INSERT_ROWS:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (row == -1) {
                    location = new DropLocation(p, getRowCount(), col, true, false);
                    break;
                }

                ySection = SwingUtilities2.liesInVertical(rect, p, true);
                if (ySection == LEADING) {
                    between = true;
                } else if (ySection == TRAILING) {
                    row++;
                    between = true;
                }

                location = new DropLocation(p, row, col, between, false);
                break;
            case INSERT_COLS:
                if (row == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (col == -1) {
                    location = new DropLocation(p, getColumnCount(), col, false, true);
                    break;
                }

                if (SwingUtilities2.liesInHorizontal(rect, p, ltr, false) == TRAILING) {
                    col++;
                }

                location = new DropLocation(p, row, col, false, true);
                break;
            case ON_OR_INSERT_COLS:
                if (row == -1) {
                    location = new DropLocation(p, -1, -1, false, false);
                    break;
                }

                if (col == -1) {
                    location = new DropLocation(p, row, getColumnCount(), false, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);
                if (xSection == LEADING) {
                    between = true;
                } else if (xSection == TRAILING) {
                    col++;
                    between = true;
                }

                location = new DropLocation(p, row, col, false, between);
                break;
            case ON_OR_INSERT:
                if (row == -1 && col == -1) {
                    location = new DropLocation(p, 0, 0, true, true);
                    break;
                }

                xSection = SwingUtilities2.liesInHorizontal(rect, p, ltr, true);

                if (row == -1) {
                    if (xSection == LEADING) {
                        location = new DropLocation(p, getRowCount(), col, true, true);
                    } else if (xSection == TRAILING) {
                        location = new DropLocation(p, getRowCount(), col + 1, true, true);
                    } else {
                        location = new DropLocation(p, getRowCount(), col, true, false);
                    }

                    break;
                }

                ySection = SwingUtilities2.liesInVertical(rect, p, true);
                if (ySection == LEADING) {
                    between = true;
                } else if (ySection == TRAILING) {
                    row++;
                    between = true;
                }

                location = new DropLocation(p, row,
                                            xSection == TRAILING ? col + 1 : col,
                                            between,
                                            xSection != MIDDLE);

                break;
            default:
                assert false : "Unexpected drop mode";
        }

        return location;
    
public booleaneditCellAt(int row, int column)
Programmatically starts editing the cell at row and column, if those indices are in the valid range, and the cell at those indices is editable. Note that this is a convenience method for editCellAt(int, int, null).

param
row the row to be edited
param
column the column to be edited
return
false if for any reason the cell cannot be edited, or if the indices are invalid

        return editCellAt(row, column, null);
    
public booleaneditCellAt(int row, int column, java.util.EventObject e)
Programmatically starts editing the cell at row and column, if those indices are in the valid range, and the cell at those indices is editable. To prevent the JTable from editing a particular table, column or cell value, return false from the isCellEditable method in the TableModel interface.

param
row the row to be edited
param
column the column to be edited
param
e event to pass into shouldSelectCell; note that as of Java 2 platform v1.2, the call to shouldSelectCell is no longer made
return
false if for any reason the cell cannot be edited, or if the indices are invalid

        if (cellEditor != null && !cellEditor.stopCellEditing()) {
            return false;
        }

	if (row < 0 || row >= getRowCount() ||
	    column < 0 || column >= getColumnCount()) {
	    return false;
	}

        if (!isCellEditable(row, column))
            return false;

        if (editorRemover == null) {
            KeyboardFocusManager fm =
                KeyboardFocusManager.getCurrentKeyboardFocusManager();
            editorRemover = new CellEditorRemover(fm);
            fm.addPropertyChangeListener("permanentFocusOwner", editorRemover);
        }

        TableCellEditor editor = getCellEditor(row, column);
        if (editor != null && editor.isCellEditable(e)) {
	    editorComp = prepareEditor(editor, row, column);
	    if (editorComp == null) {
		removeEditor();
		return false;
	    }
	    editorComp.setBounds(getCellRect(row, column, false));
	    add(editorComp);
	    editorComp.validate();
            editorComp.repaint();

	    setCellEditor(editor);
	    setEditingRow(row);
	    setEditingColumn(column);
	    editor.addCellEditorListener(this);

	    return true;
        }
        return false;
    
public voideditingCanceled(javax.swing.event.ChangeEvent e)
Invoked when editing is canceled. The editor object is discarded and the cell is rendered once again.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
CellEditorListener

        removeEditor();
    
public voideditingStopped(javax.swing.event.ChangeEvent e)
Invoked when editing is finished. The changes are saved and the editor is discarded.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
CellEditorListener

        // Take in the new value
        TableCellEditor editor = getCellEditor();
        if (editor != null) {
            Object value = editor.getCellEditorValue();
            setValueAt(value, editingRow, editingColumn);
            removeEditor();
        }
    
public javax.accessibility.AccessibleContextgetAccessibleContext()
Gets the AccessibleContext associated with this JTable. For tables, the AccessibleContext takes the form of an AccessibleJTable. A new AccessibleJTable instance is created if necessary.

return
an AccessibleJTable that serves as the AccessibleContext of this JTable

        if (accessibleContext == null) {
            accessibleContext = new AccessibleJTable();
        }
        return accessibleContext;
    
private intgetAdjustedIndex(int index, boolean row)

        int compare = row ? getRowCount() : getColumnCount();
        return index < compare ? index : -1;
    
public booleangetAutoCreateColumnsFromModel()
Determines whether the table will create default columns from the model. If true, setModel will clear any existing columns and create new columns from the new model. Also, if the event in the tableChanged notification specifies that the entire table changed, then the columns will be rebuilt. The default is true.

return
the autoCreateColumnsFromModel of the table
see
#setAutoCreateColumnsFromModel
see
#createDefaultColumnsFromModel

        return autoCreateColumnsFromModel;
    
public booleangetAutoCreateRowSorter()
Returns {@code true} if whenever the model changes, a new {@code RowSorter} should be created and installed as the table's sorter; otherwise, returns {@code false}.

return
true if a {@code RowSorter} should be created when the model changes
since
1.6

        return autoCreateRowSorter;
    
public intgetAutoResizeMode()
Returns the auto resize mode of the table. The default mode is AUTO_RESIZE_SUBSEQUENT_COLUMNS.

return
the autoResizeMode of the table
see
#setAutoResizeMode
see
#doLayout

        return autoResizeMode;
    
public javax.swing.table.TableCellEditorgetCellEditor()
Returns the active cell editor, which is {@code null} if the table is not currently editing.

return
the {@code TableCellEditor} that does the editing, or {@code null} if the table is not currently editing.
see
#cellEditor
see
#getCellEditor(int, int)

        return cellEditor;
    
public javax.swing.table.TableCellEditorgetCellEditor(int row, int column)
Returns an appropriate editor for the cell specified by row and column. If the TableColumn for this column has a non-null editor, returns that. If not, finds the class of the data in this column (using getColumnClass) and returns the default editor for this type of data.

Note: Throughout the table package, the internal implementations always use this method to provide editors so that this default behavior can be safely overridden by a subclass.

param
row the row of the cell to edit, where 0 is the first row
param
column the column of the cell to edit, where 0 is the first column
return
the editor for this cell; if null return the default editor for this type of cell
see
DefaultCellEditor

        TableColumn tableColumn = getColumnModel().getColumn(column);
        TableCellEditor editor = tableColumn.getCellEditor();
        if (editor == null) {
            editor = getDefaultEditor(getColumnClass(column));
        }
        return editor;
    
public java.awt.RectanglegetCellRect(int row, int column, boolean includeSpacing)
Returns a rectangle for the cell that lies at the intersection of row and column. If includeSpacing is true then the value returned has the full height and width of the row and column specified. If it is false, the returned rectangle is inset by the intercell spacing to return the true bounds of the rendering or editing component as it will be set during rendering.

If the column index is valid but the row index is less than zero the method returns a rectangle with the y and height values set appropriately and the x and width values both set to zero. In general, when either the row or column indices indicate a cell outside the appropriate range, the method returns a rectangle depicting the closest edge of the closest cell that is within the table's range. When both row and column indices are out of range the returned rectangle covers the closest point of the closest cell.

In all cases, calculations that use this method to calculate results along one axis will not fail because of anomalies in calculations along the other axis. When the cell is not valid the includeSpacing parameter is ignored.

param
row the row index where the desired cell is located
param
column the column index where the desired cell is located in the display; this is not necessarily the same as the column index in the data model for the table; the {@link #convertColumnIndexToView(int)} method may be used to convert a data model column index to a display column index
param
includeSpacing if false, return the true cell bounds - computed by subtracting the intercell spacing from the height and widths of the column and row models
return
the rectangle containing the cell at location row,column
see
#getIntercellSpacing

        Rectangle r = new Rectangle();
	boolean valid = true;
	if (row < 0) {
	    // y = height = 0;
	    valid = false;
	}
	else if (row >= getRowCount()) {
	    r.y = getHeight();
	    valid = false;
	}
	else {
	    r.height = getRowHeight(row);
	    r.y = (rowModel == null) ? row * r.height : rowModel.getPosition(row);
	}

	if (column < 0) {
	    if( !getComponentOrientation().isLeftToRight() ) {
		r.x = getWidth();
	    }
	    // otherwise, x = width = 0;
	    valid = false;
	}
	else if (column >= getColumnCount()) {
	    if( getComponentOrientation().isLeftToRight() ) {
		r.x = getWidth();
	    }
	    // otherwise, x = width = 0;
	    valid = false;
	}
	else { 
            TableColumnModel cm = getColumnModel(); 
            if( getComponentOrientation().isLeftToRight() ) {
                for(int i = 0; i < column; i++) { 
                    r.x += cm.getColumn(i).getWidth();
                }
            } else {
                for(int i = cm.getColumnCount()-1; i > column; i--) {
                    r.x += cm.getColumn(i).getWidth();
                }
            }
            r.width = cm.getColumn(column).getWidth(); 
	}

        if (valid && !includeSpacing) {
            // Bound the margins by their associated dimensions to prevent
            // returning bounds with negative dimensions.
            int rm = Math.min(getRowMargin(), r.height);
            int cm = Math.min(getColumnModel().getColumnMargin(), r.width);
            // This is not the same as grow(), it rounds differently.
            r.setBounds(r.x + cm/2, r.y + rm/2, r.width - cm, r.height - rm);
        }
        return r;
    
public javax.swing.table.TableCellRenderergetCellRenderer(int row, int column)
Returns an appropriate renderer for the cell specified by this row and column. If the TableColumn for this column has a non-null renderer, returns that. If not, finds the class of the data in this column (using getColumnClass) and returns the default renderer for this type of data.

Note: Throughout the table package, the internal implementations always use this method to provide renderers so that this default behavior can be safely overridden by a subclass.

param
row the row of the cell to render, where 0 is the first row
param
column the column of the cell to render, where 0 is the first column
return
the assigned renderer; if null returns the default renderer for this type of object
see
javax.swing.table.DefaultTableCellRenderer
see
javax.swing.table.TableColumn#setCellRenderer
see
#setDefaultRenderer

        TableColumn tableColumn = getColumnModel().getColumn(column);
        TableCellRenderer renderer = tableColumn.getCellRenderer();
        if (renderer == null) {
            renderer = getDefaultRenderer(getColumnClass(column));
        }
        return renderer;
    
public booleangetCellSelectionEnabled()
Returns true if both row and column selection models are enabled. Equivalent to getRowSelectionAllowed() && getColumnSelectionAllowed().

return
true if both row and column selection models are enabled
see
#setCellSelectionEnabled

        return getRowSelectionAllowed() && getColumnSelectionAllowed();
    
public javax.swing.table.TableColumngetColumn(java.lang.Object identifier)
Returns the TableColumn object for the column in the table whose identifier is equal to identifier, when compared using equals.

return
the TableColumn object that matches the identifier
exception
IllegalArgumentException if identifier is null or no TableColumn has this identifier
param
identifier the identifier object

        TableColumnModel cm = getColumnModel();
        int columnIndex = cm.getColumnIndex(identifier);
        return cm.getColumn(columnIndex);
    
public java.lang.ClassgetColumnClass(int column)
Returns the type of the column appearing in the view at column position column.

param
column the column in the view being queried
return
the type of the column at position column in the view where the first column is column 0

        return getModel().getColumnClass(convertColumnIndexToModel(column));
    
public intgetColumnCount()
Returns the number of columns in the column model. Note that this may be different from the number of columns in the table model.

return
the number of columns in the table
see
#getRowCount
see
#removeColumn

        return getColumnModel().getColumnCount();
    
public javax.swing.table.TableColumnModelgetColumnModel()
Returns the TableColumnModel that contains all column information of this table.

return
the object that provides the column state of the table
see
#setColumnModel

        return columnModel;
    
public java.lang.StringgetColumnName(int column)
Returns the name of the column appearing in the view at column position column.

param
column the column in the view being queried
return
the name of the column at position column in the view where the first column is column 0

        return getModel().getColumnName(convertColumnIndexToModel(column));
    
public booleangetColumnSelectionAllowed()
Returns true if columns can be selected.

return
true if columns can be selected, otherwise false
see
#setColumnSelectionAllowed

        return columnModel.getColumnSelectionAllowed();
    
public javax.swing.table.TableCellEditorgetDefaultEditor(java.lang.Class columnClass)
Returns the editor to be used when no editor has been set in a TableColumn. During the editing of cells the editor is fetched from a Hashtable of entries according to the class of the cells in the column. If there is no entry for this columnClass the method returns the entry for the most specific superclass. The JTable installs entries for Object, Number, and Boolean, all of which can be modified or replaced.

param
columnClass return the default cell editor for this columnClass
return
the default cell editor to be used for this columnClass
see
#setDefaultEditor
see
#getColumnClass

        if (columnClass == null) {
            return null;
        }
        else {
            Object editor = defaultEditorsByColumnClass.get(columnClass);
            if (editor != null) {
                return (TableCellEditor)editor;
            }
            else {
                return getDefaultEditor(columnClass.getSuperclass());
            }
        }
    
public javax.swing.table.TableCellRenderergetDefaultRenderer(java.lang.Class columnClass)
Returns the cell renderer to be used when no renderer has been set in a TableColumn. During the rendering of cells the renderer is fetched from a Hashtable of entries according to the class of the cells in the column. If there is no entry for this columnClass the method returns the entry for the most specific superclass. The JTable installs entries for Object, Number, and Boolean, all of which can be modified or replaced.

param
columnClass return the default cell renderer for this columnClass
return
the renderer for this columnClass
see
#setDefaultRenderer
see
#getColumnClass

        if (columnClass == null) {
            return null;
        }
        else {
            Object renderer = defaultRenderersByColumnClass.get(columnClass);
            if (renderer != null) {
                return (TableCellRenderer)renderer;
            }
            else {
                return getDefaultRenderer(columnClass.getSuperclass());
            }
        }
    
public booleangetDragEnabled()
Returns whether or not automatic drag handling is enabled.

return
the value of the {@code dragEnabled} property
see
#setDragEnabled
since
1.4

	return dragEnabled;
    
public final javax.swing.JTable$DropLocationgetDropLocation()
Returns the location that this component should visually indicate as the drop location during a DnD operation over the component, or {@code null} if no location is to currently be shown.

This method is not meant for querying the drop location from a {@code TransferHandler}, as the drop location is only set after the {@code TransferHandler}'s canImport has returned and has allowed for the location to be shown.

When this property changes, a property change event with name "dropLocation" is fired by the component.

return
the drop location
see
#setDropMode
see
TransferHandler#canImport(TransferHandler.TransferSupport)
since
1.6

        return dropLocation;
    
public final javax.swing.DropModegetDropMode()
Returns the drop mode for this component.

return
the drop mode for this component
see
#setDropMode
since
1.6

        return dropMode;
    
public intgetEditingColumn()
Returns the index of the column that contains the cell currently being edited. If nothing is being edited, returns -1.

return
the index of the column that contains the cell currently being edited; returns -1 if nothing being edited
see
#editingRow

        return editingColumn;
    
public intgetEditingRow()
Returns the index of the row that contains the cell currently being edited. If nothing is being edited, returns -1.

return
the index of the row that contains the cell currently being edited; returns -1 if nothing being edited
see
#editingColumn

        return editingRow;
    
public java.awt.ComponentgetEditorComponent()
Returns the component that is handling the editing session. If nothing is being edited, returns null.

return
Component handling editing session

        return editorComp;
    
public booleangetFillsViewportHeight()
Returns whether or not this table is always made large enough to fill the height of an enclosing viewport.

return
whether or not this table is always made large enough to fill the height of an enclosing viewport
see
#setFillsViewportHeight
since
1.6

        return fillsViewportHeight;
    
public java.awt.ColorgetGridColor()
Returns the color used to draw grid lines. The default color is look and feel dependent.

return
the color used to draw grid lines
see
#setGridColor

        return gridColor;
    
public java.awt.DimensiongetIntercellSpacing()
Returns the horizontal and vertical space between cells. The default spacing is (1, 1), which provides room to draw the grid.

return
the horizontal and vertical spacing between cells
see
#setIntercellSpacing

        return new Dimension(getColumnModel().getColumnMargin(), rowMargin);
    
private intgetLeadingCol(java.awt.Rectangle visibleRect)

        Point leadingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            leadingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        else {
            leadingPoint = new Point(visibleRect.x + visibleRect.width,
                                     visibleRect.y);
        }
        return columnAtPoint(leadingPoint);
    
private intgetLeadingRow(java.awt.Rectangle visibleRect)

        Point leadingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            leadingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        else {
            leadingPoint = new Point(visibleRect.x + visibleRect.width,
                                     visibleRect.y);
        }
        return rowAtPoint(leadingPoint);
    
public javax.swing.table.TableModelgetModel()
Returns the TableModel that provides the data displayed by this JTable.

return
the TableModel that provides the data displayed by this JTable
see
#setModel

        return dataModel;
    
private intgetNextBlockIncrement(java.awt.Rectangle visibleRect, int orientation)
Called to get the block increment for downward scrolling in cases of horizontal scrolling, or for vertical scrolling of a table with variable row heights.

        // Find the cell at the trailing edge.  Return the distance to put
        // that cell at the leading edge.
        int trailingRow = getTrailingRow(visibleRect);
        int trailingCol = getTrailingCol(visibleRect);

        Rectangle cellRect;
        boolean cellFillsVis;
        
        int cellLeadingEdge;
        int cellTrailingEdge;
        int newLeadingEdge;
        int visibleLeadingEdge = leadingEdge(visibleRect, orientation);

        // If we couldn't find trailing cell, just return the size of the
        // visibleRect.  Note that, for instance, we don't need the
        // trailingCol to proceed if we're scrolling vertically, because
        // cellRect will still fill in the required dimensions.  This would
        // happen if we're scrolling vertically, and the table is not wide
        // enough to fill the visibleRect.
        if (orientation == SwingConstants.VERTICAL && trailingRow < 0) {
            return visibleRect.height;
        }
        else if (orientation == SwingConstants.HORIZONTAL && trailingCol < 0) {
            return visibleRect.width;
        }
        cellRect = getCellRect(trailingRow, trailingCol, true);
        cellLeadingEdge = leadingEdge(cellRect, orientation);
        cellTrailingEdge = trailingEdge(cellRect, orientation);

        if (orientation == SwingConstants.VERTICAL ||
            getComponentOrientation().isLeftToRight()) {
            cellFillsVis = cellLeadingEdge <= visibleLeadingEdge;
        }
        else { // Horizontal, right-to-left
            cellFillsVis = cellLeadingEdge >= visibleLeadingEdge;
        }

        if (cellFillsVis) {
            // The visibleRect contains a single large cell.  Scroll to the end
            // of this cell, so the following cell is the first cell.
            newLeadingEdge = cellTrailingEdge;
        }
        else if (cellTrailingEdge == trailingEdge(visibleRect, orientation)) {
            // The trailing cell happens to end right at the end of the 
            // visibleRect.  Again, scroll to the beginning of the next cell.
            newLeadingEdge = cellTrailingEdge;
        }
        else {
            // Common case: the trailing cell is partially visible, and isn't
            // big enough to take up the entire visibleRect.  Scroll so it 
            // becomes the leading cell.
            newLeadingEdge = cellLeadingEdge;
        }
        return Math.abs(newLeadingEdge - visibleLeadingEdge);
    
public java.awt.DimensiongetPreferredScrollableViewportSize()
Returns the preferred size of the viewport for this table.

return
a Dimension object containing the preferredSize of the JViewport which displays this table
see
Scrollable#getPreferredScrollableViewportSize

        return preferredViewportSize;
    
private intgetPreviousBlockIncrement(java.awt.Rectangle visibleRect, int orientation)
Called to get the block increment for upward scrolling in cases of horizontal scrolling, or for vertical scrolling of a table with variable row heights.

        // Measure back from visible leading edge
        // If we hit the cell on its leading edge, it becomes the leading cell.
        // Else, use following cell

        int row;
        int col;

        int   newEdge; 
        Point newCellLoc;

        int visibleLeadingEdge = leadingEdge(visibleRect, orientation);
        boolean leftToRight = getComponentOrientation().isLeftToRight();
        int newLeadingEdge;

        // Roughly determine the new leading edge by measuring back from the
        // leading visible edge by the size of the visible rect, and find the
        // cell there.
        if (orientation == SwingConstants.VERTICAL) {
            newEdge = visibleLeadingEdge - visibleRect.height;
            int x = visibleRect.x + (leftToRight ? 0 : visibleRect.width);
            newCellLoc = new Point(x, newEdge);
        }
        else if (leftToRight) {
            newEdge = visibleLeadingEdge - visibleRect.width;
            newCellLoc = new Point(newEdge, visibleRect.y);
        }
        else { // Horizontal, right-to-left
            newEdge = visibleLeadingEdge + visibleRect.width;
            newCellLoc = new Point(newEdge, visibleRect.y);
        }
        row = rowAtPoint(newCellLoc);
        col = columnAtPoint(newCellLoc);

        // If we're measuring past the beginning of the table, we get an invalid
        // cell.  Just go to the beginning of the table in this case.
        if (orientation == SwingConstants.VERTICAL & row < 0) {
            newLeadingEdge = 0;
        }
        else if (orientation == SwingConstants.HORIZONTAL & col < 0) {
            if (leftToRight) {
                newLeadingEdge = 0;
            }
            else {
                newLeadingEdge = getWidth();
            }
        }
        else {
            // Refine our measurement
            Rectangle newCellRect = getCellRect(row, col, true);
            int newCellLeadingEdge = leadingEdge(newCellRect, orientation);
            int newCellTrailingEdge = trailingEdge(newCellRect, orientation);

            // Usually, we hit in the middle of newCell, and want to scroll to
            // the beginning of the cell after newCell.  But there are a
            // couple corner cases where we want to scroll to the beginning of
            // newCell itself.  These cases are:
            // 1) newCell is so large that it ends at or extends into the
            //    visibleRect (newCell is the leading cell, or is adjacent to
            //    the leading cell)
            // 2) newEdge happens to fall right on the beginning of a cell

            // Case 1
            if ((orientation == SwingConstants.VERTICAL || leftToRight) &&
                (newCellTrailingEdge >= visibleLeadingEdge)) {
                newLeadingEdge = newCellLeadingEdge;
            }
            else if (orientation == SwingConstants.HORIZONTAL &&
                     !leftToRight &&
                     newCellTrailingEdge <= visibleLeadingEdge) {
                newLeadingEdge = newCellLeadingEdge;
            }
            // Case 2:
            else if (newEdge == newCellLeadingEdge) {
                newLeadingEdge = newCellLeadingEdge;
            }
            // Common case: scroll to cell after newCell
            else {
                newLeadingEdge = newCellTrailingEdge;
            }
        }
        return Math.abs(visibleLeadingEdge - newLeadingEdge);
    
public java.awt.print.PrintablegetPrintable(javax.swing.JTable$PrintMode printMode, java.text.MessageFormat headerFormat, java.text.MessageFormat footerFormat)
Return a Printable for use in printing this JTable.

This method is meant for those wishing to customize the default Printable implementation used by JTable's print methods. Developers wanting simply to print the table should use one of those methods directly.

The Printable can be requested in one of two printing modes. In both modes, it spreads table rows naturally in sequence across multiple pages, fitting as many rows as possible per page. PrintMode.NORMAL specifies that the table be printed at its current size. In this mode, there may be a need to spread columns across pages in a similar manner to that of the rows. When the need arises, columns are distributed in an order consistent with the table's ComponentOrientation. PrintMode.FIT_WIDTH specifies that the output be scaled smaller, if necessary, to fit the table's entire width (and thereby all columns) on each page. Width and height are scaled equally, maintaining the aspect ratio of the output.

The Printable heads the portion of table on each page with the appropriate section from the table's JTableHeader, if it has one.

Header and footer text can be added to the output by providing MessageFormat arguments. The printing code requests Strings from the formats, providing a single item which may be included in the formatted string: an Integer representing the current page number.

You are encouraged to read the documentation for MessageFormat as some characters, such as single-quote, are special and need to be escaped.

Here's an example of creating a MessageFormat that can be used to print "Duke's Table: Page - " and the current page number:

// notice the escaping of the single quote
// notice how the page number is included with "{0}"
MessageFormat format = new MessageFormat("Duke''s Table: Page - {0}");

The Printable constrains what it draws to the printable area of each page that it prints. Under certain circumstances, it may find it impossible to fit all of a page's content into that area. In these cases the output may be clipped, but the implementation makes an effort to do something reasonable. Here are a few situations where this is known to occur, and how they may be handled by this particular implementation:

  • In any mode, when the header or footer text is too wide to fit completely in the printable area -- print as much of the text as possible starting from the beginning, as determined by the table's ComponentOrientation.
  • In any mode, when a row is too tall to fit in the printable area -- print the upper-most portion of the row and paint no lower border on the table.
  • In PrintMode.NORMAL when a column is too wide to fit in the printable area -- print the center portion of the column and leave the left and right borders off the table.

It is entirely valid for this Printable to be wrapped inside another in order to create complex reports and documents. You may even request that different pages be rendered into different sized printable areas. The implementation must be prepared to handle this (possibly by doing its layout calculations on the fly). However, providing different heights to each page will likely not work well with PrintMode.NORMAL when it has to spread columns across pages.

As far as customizing how the table looks in the printed result, JTable itself will take care of hiding the selection and focus during printing. For additional customizations, your renderers or painting code can customize the look based on the value of {@link javax.swing.JComponent#isPaintingForPrint()}

Also, before calling this method you may wish to first modify the state of the table, such as to cancel cell editing or have the user size the table appropriately. However, you must not modify the state of the table after this Printable has been fetched (invalid modifications include changes in size or underlying data). The behavior of the returned Printable is undefined once the table has been changed.

param
printMode the printing mode that the printable should use
param
headerFormat a MessageFormat specifying the text to be used in printing a header, or null for none
param
footerFormat a MessageFormat specifying the text to be used in printing a footer, or null for none
return
a Printable for printing this JTable
see
#print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean)
see
Printable
see
PrinterJob
since
1.5


        return new TablePrintable(this, printMode, headerFormat, footerFormat);
    
private javax.swing.table.TableColumngetResizingColumn()

	return (tableHeader == null) ? null
	                             : tableHeader.getResizingColumn();
    
public intgetRowCount()
Returns the number of rows that can be shown in the JTable, given unlimited space. If a RowSorter with a filter has been specified, the number of rows returned may differ from that of the underlying TableModel.

return
the number of rows shown in the JTable
see
#getColumnCount

        RowSorter sorter = getRowSorter();
        if (sorter != null) {
            return sorter.getViewRowCount();
        }
        return getModel().getRowCount();
    
public intgetRowHeight()
Returns the height of a table row, in pixels. The default row height is 16.0.

return
the height in pixels of a table row
see
#setRowHeight

        return rowHeight;
    
public intgetRowHeight(int row)
Returns the height, in pixels, of the cells in row.

param
row the row whose height is to be returned
return
the height, in pixels, of the cells in the row
since
1.3

	return (rowModel == null) ? getRowHeight() : rowModel.getSize(row);
    
public intgetRowMargin()
Gets the amount of empty space, in pixels, between cells. Equivalent to: getIntercellSpacing().height.

return
the number of pixels between cells in a row
see
#setRowMargin

        return rowMargin;
    
private javax.swing.SizeSequencegetRowModel()

	if (rowModel == null) {
	    rowModel = new SizeSequence(getRowCount(), getRowHeight());
	}
	return rowModel;
    
public booleangetRowSelectionAllowed()
Returns true if rows can be selected.

return
true if rows can be selected, otherwise false
see
#setRowSelectionAllowed

        return rowSelectionAllowed;
    
public javax.swing.RowSortergetRowSorter()
Returns the object responsible for sorting.

return
the object responsible for sorting
since
1.6

        return (sortManager != null) ? sortManager.sorter : null;
    
public intgetScrollableBlockIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
Returns visibleRect.height or visibleRect.width, depending on this table's orientation. Note that as of Swing 1.1.1 (Java 2 v 1.2.2) the value returned will ensure that the viewport is cleanly aligned on a row boundary.

return
visibleRect.height or visibleRect.width per the orientation
see
Scrollable#getScrollableBlockIncrement


        if (getRowCount() == 0) {
            // Short-circuit empty table model
            if (SwingConstants.VERTICAL == orientation) {
                int rh = getRowHeight();
                return (rh > 0) ? Math.max(rh, (visibleRect.height / rh) * rh) :
                                  visibleRect.height;
            }
            else {
                return visibleRect.width;
            }
        }
        // Shortcut for vertical scrolling of a table w/ uniform row height
        if (null == rowModel && SwingConstants.VERTICAL == orientation) {
            int row = rowAtPoint(visibleRect.getLocation());
            assert row != -1;
            int col = columnAtPoint(visibleRect.getLocation());
            Rectangle cellRect = getCellRect(row, col, true);

            if (cellRect.y == visibleRect.y) {
                int rh = getRowHeight();
                assert rh > 0;
                return Math.max(rh, (visibleRect.height / rh) * rh);
            }
        }
        if (direction < 0) {
            return getPreviousBlockIncrement(visibleRect, orientation);
        }
        else {
            return getNextBlockIncrement(visibleRect, orientation);
        }
    
public booleangetScrollableTracksViewportHeight()
Returns {@code false} to indicate that the height of the viewport does not determine the height of the table, unless {@code getFillsViewportHeight} is {@code true} and the preferred height of the table is smaller than the viewport's height.

return
{@code false} unless {@code getFillsViewportHeight} is {@code true} and the table needs to be stretched to fill the viewport
see
Scrollable#getScrollableTracksViewportHeight
see
#setFillsViewportHeight
see
#getFillsViewportHeight

        return getFillsViewportHeight()
               && getParent() instanceof JViewport
               && (((JViewport)getParent()).getHeight() > getPreferredSize().height);
    
public booleangetScrollableTracksViewportWidth()
Returns false if autoResizeMode is set to AUTO_RESIZE_OFF, which indicates that the width of the viewport does not determine the width of the table. Otherwise returns true.

return
false if autoResizeMode is set to AUTO_RESIZE_OFF, otherwise returns true
see
Scrollable#getScrollableTracksViewportWidth

        return !(autoResizeMode == AUTO_RESIZE_OFF);
    
public intgetScrollableUnitIncrement(java.awt.Rectangle visibleRect, int orientation, int direction)
Returns the scroll increment (in pixels) that completely exposes one new row or column (depending on the orientation).

This method is called each time the user requests a unit scroll.

param
visibleRect the view area visible within the viewport
param
orientation either SwingConstants.VERTICAL or SwingConstants.HORIZONTAL
param
direction less than zero to scroll up/left, greater than zero for down/right
return
the "unit" increment for scrolling in the specified direction
see
Scrollable#getScrollableUnitIncrement

        int leadingRow;
        int leadingCol;
        Rectangle leadingCellRect;

        int leadingVisibleEdge;
        int leadingCellEdge;
        int leadingCellSize;

        leadingRow = getLeadingRow(visibleRect);
        leadingCol = getLeadingCol(visibleRect);
        if (orientation == SwingConstants.VERTICAL && leadingRow < 0) {
            // Couldn't find leading row - return some default value
            return getRowHeight();
        }
        else if (orientation == SwingConstants.HORIZONTAL && leadingCol < 0) {
            // Couldn't find leading col - return some default value
            return 100;
        }

        // Note that it's possible for one of leadingCol or leadingRow to be
        // -1, depending on the orientation.  This is okay, as getCellRect()
        // still provides enough information to calculate the unit increment.
        leadingCellRect = getCellRect(leadingRow, leadingCol, true);
        leadingVisibleEdge = leadingEdge(visibleRect, orientation);
        leadingCellEdge = leadingEdge(leadingCellRect, orientation);

        if (orientation == SwingConstants.VERTICAL) {
            leadingCellSize = leadingCellRect.height;

        }
        else {
            leadingCellSize = leadingCellRect.width;
        }

        // 4 cases:
        // #1: Leading cell fully visible, reveal next cell
        // #2: Leading cell fully visible, hide leading cell
        // #3: Leading cell partially visible, hide rest of leading cell
        // #4: Leading cell partially visible, reveal rest of leading cell

        if (leadingVisibleEdge == leadingCellEdge) { // Leading cell is fully
                                                     // visible
            // Case #1: Reveal previous cell
            if (direction < 0) {
                int retVal = 0;

                if (orientation == SwingConstants.VERTICAL) {
                    // Loop past any zero-height rows
                    while (--leadingRow >= 0) {
                        retVal = getRowHeight(leadingRow);
                        if (retVal != 0) {
                            break;
                        }
                    }
                }
                else { // HORIZONTAL
                    // Loop past any zero-width cols
                    while (--leadingCol >= 0) {
                        retVal = getCellRect(leadingRow, leadingCol, true).width;
                        if (retVal != 0) {
                            break;
                        }
                    }
                }
                return retVal;
            }
            else { // Case #2: hide leading cell
                return leadingCellSize;
            }
        }
        else { // Leading cell is partially hidden
            // Compute visible, hidden portions
            int hiddenAmt = Math.abs(leadingVisibleEdge - leadingCellEdge);
            int visibleAmt = leadingCellSize - hiddenAmt;

            if (direction > 0) {
                // Case #3: hide showing portion of leading cell
                return visibleAmt;
            }
            else { // Case #4: reveal hidden portion of leading cell
                return hiddenAmt;
            }
        }
    
public intgetSelectedColumn()
Returns the index of the first selected column, -1 if no column is selected.

return
the index of the first selected column

        return columnModel.getSelectionModel().getMinSelectionIndex();
    
public intgetSelectedColumnCount()
Returns the number of selected columns.

return
the number of selected columns, 0 if no columns are selected

        return columnModel.getSelectedColumnCount();
    
public int[]getSelectedColumns()
Returns the indices of all selected columns.

return
an array of integers containing the indices of all selected columns, or an empty array if no column is selected
see
#getSelectedColumn

        return columnModel.getSelectedColumns();
    
public intgetSelectedRow()
Returns the index of the first selected row, -1 if no row is selected.

return
the index of the first selected row

	return selectionModel.getMinSelectionIndex();
    
public intgetSelectedRowCount()
Returns the number of selected rows.

return
the number of selected rows, 0 if no rows are selected

	int iMin = selectionModel.getMinSelectionIndex();
	int iMax = selectionModel.getMaxSelectionIndex();
	int count = 0;

	for(int i = iMin; i <= iMax; i++) {
	    if (selectionModel.isSelectedIndex(i)) {
		count++;
	    }
	}
	return count;
    
public int[]getSelectedRows()
Returns the indices of all selected rows.

return
an array of integers containing the indices of all selected rows, or an empty array if no row is selected
see
#getSelectedRow

	int iMin = selectionModel.getMinSelectionIndex();
	int iMax = selectionModel.getMaxSelectionIndex();

	if ((iMin == -1) || (iMax == -1)) {
	    return new int[0];
	}

	int[] rvTmp = new int[1+ (iMax - iMin)];
	int n = 0;
	for(int i = iMin; i <= iMax; i++) {
	    if (selectionModel.isSelectedIndex(i)) {
		rvTmp[n++] = i;
	    }
	}
	int[] rv = new int[n];
	System.arraycopy(rvTmp, 0, rv, 0, n);
	return rv;
    
public java.awt.ColorgetSelectionBackground()
Returns the background color for selected cells.

return
the Color used for the background of selected list items
see
#setSelectionBackground
see
#setSelectionForeground

        return selectionBackground;
    
public java.awt.ColorgetSelectionForeground()
Returns the foreground color for selected cells.

return
the Color object for the foreground property
see
#setSelectionForeground
see
#setSelectionBackground

        return selectionForeground;
    
public javax.swing.ListSelectionModelgetSelectionModel()
Returns the ListSelectionModel that is used to maintain row selection state.

return
the object that provides row selection state, null if row selection is not allowed
see
#setSelectionModel

        return selectionModel;
    
public booleangetShowHorizontalLines()
Returns true if the table draws horizontal lines between cells, false if it doesn't. The default is true.

return
true if the table draws horizontal lines between cells, false if it doesn't
see
#setShowHorizontalLines

        return showHorizontalLines;
    
public booleangetShowVerticalLines()
Returns true if the table draws vertical lines between cells, false if it doesn't. The default is true.

return
true if the table draws vertical lines between cells, false if it doesn't
see
#setShowVerticalLines

        return showVerticalLines;
    
public booleangetSurrendersFocusOnKeystroke()
Returns true if the editor should get the focus when keystrokes cause the editor to be activated

return
true if the editor should get the focus when keystrokes cause the editor to be activated
see
#setSurrendersFocusOnKeystroke
since
1.4

        return surrendersFocusOnKeystroke;
    
public javax.swing.table.JTableHeadergetTableHeader()
Returns the tableHeader used by this JTable.

return
the tableHeader used by this table
see
#setTableHeader

        return tableHeader;
    
public java.lang.StringgetToolTipText(java.awt.event.MouseEvent event)
Overrides JComponent's getToolTipText method in order to allow the renderer's tips to be used if it has text set.

Note: For JTable to properly display tooltips of its renderers JTable must be a registered component with the ToolTipManager. This is done automatically in initializeLocalVars, but if at a later point JTable is told setToolTipText(null) it will unregister the table component, and no tips from renderers will display anymore.

see
JComponent#getToolTipText

        String tip = null;
        Point p = event.getPoint();

        // Locate the renderer under the event location
        int hitColumnIndex = columnAtPoint(p);
        int hitRowIndex = rowAtPoint(p);

        if ((hitColumnIndex != -1) && (hitRowIndex != -1)) {
            TableCellRenderer renderer = getCellRenderer(hitRowIndex, hitColumnIndex);
            Component component = prepareRenderer(renderer, hitRowIndex, hitColumnIndex);

            // Now have to see if the component is a JComponent before
            // getting the tip
            if (component instanceof JComponent) {
                // Convert the event to the renderer's coordinate system
                Rectangle cellRect = getCellRect(hitRowIndex, hitColumnIndex, false);
                p.translate(-cellRect.x, -cellRect.y);
                MouseEvent newEvent = new MouseEvent(component, event.getID(),
                                          event.getWhen(), event.getModifiers(),
                                          p.x, p.y,
                                          event.getXOnScreen(),
                                          event.getYOnScreen(),
                                          event.getClickCount(),
                                          event.isPopupTrigger(),
                                          MouseEvent.NOBUTTON);

                tip = ((JComponent)component).getToolTipText(newEvent);
            }
        }

        // No tip from the renderer get our own tip
        if (tip == null)
            tip = getToolTipText();

        return tip;
    
private intgetTrailingCol(java.awt.Rectangle visibleRect)

        Point trailingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            trailingPoint = new Point(visibleRect.x + visibleRect.width - 1,
                                      visibleRect.y);
        }
        else {
            trailingPoint = new Point(visibleRect.x, visibleRect.y);
        }
        return columnAtPoint(trailingPoint);
    
private intgetTrailingRow(java.awt.Rectangle visibleRect)

        Point trailingPoint;

        if (getComponentOrientation().isLeftToRight()) {
            trailingPoint = new Point(visibleRect.x,
                                      visibleRect.y + visibleRect.height - 1);
        }
        else {
            trailingPoint = new Point(visibleRect.x + visibleRect.width,
                                      visibleRect.y + visibleRect.height - 1);
        }
        return rowAtPoint(trailingPoint);
    
public javax.swing.plaf.TableUIgetUI()
Returns the L&F object that renders this component.

return
the TableUI object that renders this component

        return (TableUI)ui;
    
public java.lang.StringgetUIClassID()
Returns the suffix used to construct the name of the L&F class used to render this component.

return
the string "TableUI"
see
JComponent#getUIClassID
see
UIDefaults#getUI

        return uiClassID;
    
public booleangetUpdateSelectionOnSort()
Returns true if the selection should be updated after sorting.

return
whether to update the selection on a sort
since
1.6

        return updateSelectionOnSort;
    
public java.lang.ObjectgetValueAt(int row, int column)
Returns the cell value at row and column.

Note: The column is specified in the table view's display order, and not in the TableModel's column order. This is an important distinction because as the user rearranges the columns in the table, the column at a given index in the view will change. Meanwhile the user's actions never affect the model's column ordering.

param
row the row whose value is to be queried
param
column the column whose value is to be queried
return
the Object at the specified cell

        return getModel().getValueAt(convertRowIndexToModel(row),
                                     convertColumnIndexToModel(column));
    
protected voidinitializeLocalVars()
Initializes table properties to their default values.

        updateSelectionOnSort = true;
        setOpaque(true);
        createDefaultRenderers();
        createDefaultEditors();

        setTableHeader(createDefaultTableHeader());

        setShowGrid(true);
        setAutoResizeMode(AUTO_RESIZE_SUBSEQUENT_COLUMNS);
        setRowHeight(16);
        isRowHeightSet = false;
        setRowMargin(1);
        setRowSelectionAllowed(true);
        setCellEditor(null);
        setEditingColumn(-1);
	setEditingRow(-1);
        setSurrendersFocusOnKeystroke(false);
        setPreferredScrollableViewportSize(new Dimension(450, 400));

        // I'm registered to do tool tips so we can draw tips for the renderers
        ToolTipManager toolTipManager = ToolTipManager.sharedInstance();
        toolTipManager.registerComponent(this);

        setAutoscrolls(true);
    
public booleanisCellEditable(int row, int column)
Returns true if the cell at row and column is editable. Otherwise, invoking setValueAt on the cell will have no effect.

Note: The column is specified in the table view's display order, and not in the TableModel's column order. This is an important distinction because as the user rearranges the columns in the table, the column at a given index in the view will change. Meanwhile the user's actions never affect the model's column ordering.

param
row the row whose value is to be queried
param
column the column whose value is to be queried
return
true if the cell is editable
see
#setValueAt

        return getModel().isCellEditable(convertRowIndexToModel(row),
                                         convertColumnIndexToModel(column));
    
public booleanisCellSelected(int row, int column)
Returns true if the specified indices are in the valid range of rows and columns and the cell at the specified position is selected.

param
row the row being queried
param
column the column being queried
return
true if row and column are valid indices and the cell at index (row, column) is selected, where the first row and first column are at index 0

	if (!getRowSelectionAllowed() && !getColumnSelectionAllowed()) {
	    return false;
	}
	return (!getRowSelectionAllowed() || isRowSelected(row)) &&
               (!getColumnSelectionAllowed() || isColumnSelected(column));
    
public booleanisColumnSelected(int column)
Returns true if the specified index is in the valid range of columns, and the column at that index is selected.

param
column the column in the column model
return
true if column is a valid index and the column at that index is selected (where 0 is the first column)

        return columnModel.getSelectionModel().isSelectedIndex(column);
    
public booleanisEditing()
Returns true if a cell is being edited.

return
true if the table is editing a cell
see
#editingColumn
see
#editingRow

        return (cellEditor == null)? false : true;
    
public booleanisRowSelected(int row)
Returns true if the specified index is in the valid range of rows, and the row at that index is selected.

return
true if row is a valid index and the row at that index is selected (where 0 is the first row)

	return selectionModel.isSelectedIndex(row);
    
private intleadingEdge(java.awt.Rectangle rect, int orientation)

        if (orientation == SwingConstants.VERTICAL) {
            return rect.y;
        }
        else if (getComponentOrientation().isLeftToRight()) {
            return rect.x;
        }
        else { // Horizontal, right-to-left
            return rect.x + rect.width;
        }
    
private intlimit(int i, int a, int b)

	return Math.min(b, Math.max(i, a));
    
public voidmoveColumn(int column, int targetColumn)
Moves the column column to the position currently occupied by the column targetColumn in the view. The old column at targetColumn is shifted left or right to make room.

param
column the index of column to be moved
param
targetColumn the new index of the column

        getColumnModel().moveColumn(column, targetColumn);
    
private voidnotifySorter(javax.swing.JTable$ModelChange change)
Notifies the sorter of a change in the underlying model.

        try {
            ignoreSortChange = true;
            sorterChanged = false;
            switch(change.type) {
            case TableModelEvent.UPDATE:
                if (change.event.getLastRow() == Integer.MAX_VALUE) {
                    sortManager.sorter.allRowsChanged();
                } else if (change.event.getColumn() ==
                           TableModelEvent.ALL_COLUMNS) {
                    sortManager.sorter.rowsUpdated(change.startModelIndex,
                                       change.endModelIndex);
                } else {
                    sortManager.sorter.rowsUpdated(change.startModelIndex,
                                       change.endModelIndex,
                                       change.event.getColumn());
                }
                break;
            case TableModelEvent.INSERT:
                sortManager.sorter.rowsInserted(change.startModelIndex,
                                    change.endModelIndex);
                break;
            case TableModelEvent.DELETE:
                sortManager.sorter.rowsDeleted(change.startModelIndex,
                                   change.endModelIndex);
                break;
            }
        } finally {
            ignoreSortChange = false;
        }
    
protected java.lang.StringparamString()
Returns a string representation of this table. This method is intended to be used only for debugging purposes, and the content and format of the returned string may vary between implementations. The returned string may be empty but may not be null.

return
a string representation of this table

	String gridColorString = (gridColor != null ?
				  gridColor.toString() : "");
	String showHorizontalLinesString = (showHorizontalLines ?
					    "true" : "false");
	String showVerticalLinesString = (showVerticalLines ?
					  "true" : "false");
	String autoResizeModeString;
        if (autoResizeMode == AUTO_RESIZE_OFF) {
	    autoResizeModeString = "AUTO_RESIZE_OFF";
	} else if (autoResizeMode == AUTO_RESIZE_NEXT_COLUMN) {
	    autoResizeModeString = "AUTO_RESIZE_NEXT_COLUMN";
	} else if (autoResizeMode == AUTO_RESIZE_SUBSEQUENT_COLUMNS) {
	    autoResizeModeString = "AUTO_RESIZE_SUBSEQUENT_COLUMNS";
	} else if (autoResizeMode == AUTO_RESIZE_LAST_COLUMN) {
	    autoResizeModeString = "AUTO_RESIZE_LAST_COLUMN";
	} else if (autoResizeMode == AUTO_RESIZE_ALL_COLUMNS)  {
	    autoResizeModeString = "AUTO_RESIZE_ALL_COLUMNS";
	} else autoResizeModeString = "";
	String autoCreateColumnsFromModelString = (autoCreateColumnsFromModel ?
						   "true" : "false");
	String preferredViewportSizeString = (preferredViewportSize != null ?
					      preferredViewportSize.toString()
					      : "");
	String rowSelectionAllowedString = (rowSelectionAllowed ?
					    "true" : "false");
	String cellSelectionEnabledString = (cellSelectionEnabled ?
					    "true" : "false");
	String selectionForegroundString = (selectionForeground != null ?
					    selectionForeground.toString() :
					    "");
	String selectionBackgroundString = (selectionBackground != null ?
					    selectionBackground.toString() :
					    "");

	return super.paramString() +
	",autoCreateColumnsFromModel=" + autoCreateColumnsFromModelString +
	",autoResizeMode=" + autoResizeModeString +
	",cellSelectionEnabled=" + cellSelectionEnabledString +
	",editingColumn=" + editingColumn +
	",editingRow=" + editingRow +
	",gridColor=" + gridColorString +
	",preferredViewportSize=" + preferredViewportSizeString +
	",rowHeight=" + rowHeight +
	",rowMargin=" + rowMargin +
	",rowSelectionAllowed=" + rowSelectionAllowedString +
	",selectionBackground=" + selectionBackgroundString +
	",selectionForeground=" + selectionForegroundString +
	",showHorizontalLines=" + showHorizontalLinesString +
	",showVerticalLines=" + showVerticalLinesString;
    
public java.awt.ComponentprepareEditor(javax.swing.table.TableCellEditor editor, int row, int column)
Prepares the editor by querying the data model for the value and selection state of the cell at row, column.

Note: Throughout the table package, the internal implementations always use this method to prepare editors so that this default behavior can be safely overridden by a subclass.

param
editor the TableCellEditor to set up
param
row the row of the cell to edit, where 0 is the first row
param
column the column of the cell to edit, where 0 is the first column
return
the Component being edited

        Object value = getValueAt(row, column);
        boolean isSelected = isCellSelected(row, column);
        Component comp = editor.getTableCellEditorComponent(this, value, isSelected,
                                                  row, column);
        if (comp instanceof JComponent) {
	    JComponent jComp = (JComponent)comp;
	    if (jComp.getNextFocusableComponent() == null) {
		jComp.setNextFocusableComponent(this);
	    }
	}
	return comp;
    
public java.awt.ComponentprepareRenderer(javax.swing.table.TableCellRenderer renderer, int row, int column)
Prepares the renderer by querying the data model for the value and selection state of the cell at row, column. Returns the component (may be a Component or a JComponent) under the event location.

During a printing operation, this method will configure the renderer without indicating selection or focus, to prevent them from appearing in the printed output. To do other customizations based on whether or not the table is being printed, you can check the value of {@link javax.swing.JComponent#isPaintingForPrint()}, either here or within custom renderers.

Note: Throughout the table package, the internal implementations always use this method to prepare renderers so that this default behavior can be safely overridden by a subclass.

param
renderer the TableCellRenderer to prepare
param
row the row of the cell to render, where 0 is the first row
param
column the column of the cell to render, where 0 is the first column
return
the Component under the event location

        Object value = getValueAt(row, column);

        boolean isSelected = false;
        boolean hasFocus = false;

        // Only indicate the selection and focused cell if not printing
        if (!isPaintingForPrint()) {
            isSelected = isCellSelected(row, column);

            boolean rowIsLead =
                (selectionModel.getLeadSelectionIndex() == row);
            boolean colIsLead =
                (columnModel.getSelectionModel().getLeadSelectionIndex() == column);

            hasFocus = (rowIsLead && colIsLead) && isFocusOwner();
        }

	return renderer.getTableCellRendererComponent(this, value,
	                                              isSelected, hasFocus,
	                                              row, column);
    
public booleanprint()
A convenience method that displays a printing dialog, and then prints this JTable in mode PrintMode.FIT_WIDTH, with no header or footer text. A modal progress dialog, with an abort option, will be shown for the duration of printing.

Note: In headless mode, no dialogs are shown and printing occurs on the default printer.

return
true, unless printing is cancelled by the user
throws
SecurityException if this thread is not allowed to initiate a print job request
throws
PrinterException if an error in the print system causes the job to be aborted
see
#print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean, PrintService)
see
#getPrintable
since
1.5


        return print(PrintMode.FIT_WIDTH);
    
public booleanprint(javax.swing.JTable$PrintMode printMode)
A convenience method that displays a printing dialog, and then prints this JTable in the given printing mode, with no header or footer text. A modal progress dialog, with an abort option, will be shown for the duration of printing.

Note: In headless mode, no dialogs are shown and printing occurs on the default printer.

param
printMode the printing mode that the printable should use
return
true, unless printing is cancelled by the user
throws
SecurityException if this thread is not allowed to initiate a print job request
throws
PrinterException if an error in the print system causes the job to be aborted
see
#print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean, PrintService)
see
#getPrintable
since
1.5


        return print(printMode, null, null);
    
public booleanprint(javax.swing.JTable$PrintMode printMode, java.text.MessageFormat headerFormat, java.text.MessageFormat footerFormat)
A convenience method that displays a printing dialog, and then prints this JTable in the given printing mode, with the specified header and footer text. A modal progress dialog, with an abort option, will be shown for the duration of printing.

Note: In headless mode, no dialogs are shown and printing occurs on the default printer.

param
printMode the printing mode that the printable should use
param
headerFormat a MessageFormat specifying the text to be used in printing a header, or null for none
param
footerFormat a MessageFormat specifying the text to be used in printing a footer, or null for none
return
true, unless printing is cancelled by the user
throws
SecurityException if this thread is not allowed to initiate a print job request
throws
PrinterException if an error in the print system causes the job to be aborted
see
#print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean, PrintService)
see
#getPrintable
since
1.5


        boolean showDialogs = !GraphicsEnvironment.isHeadless();
        return print(printMode, headerFormat, footerFormat,
                     showDialogs, null, showDialogs);
    
public booleanprint(javax.swing.JTable$PrintMode printMode, java.text.MessageFormat headerFormat, java.text.MessageFormat footerFormat, boolean showPrintDialog, javax.print.attribute.PrintRequestAttributeSet attr, boolean interactive)
Prints this table, as specified by the fully featured {@link #print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean, PrintService) print} method, with the default printer specified as the print service.

param
printMode the printing mode that the printable should use
param
headerFormat a MessageFormat specifying the text to be used in printing a header, or null for none
param
footerFormat a MessageFormat specifying the text to be used in printing a footer, or null for none
param
showPrintDialog whether or not to display a print dialog
param
attr a PrintRequestAttributeSet specifying any printing attributes, or null for none
param
interactive whether or not to print in an interactive mode
return
true, unless printing is cancelled by the user
throws
HeadlessException if the method is asked to show a printing dialog or run interactively, and GraphicsEnvironment.isHeadless returns true
throws
SecurityException if this thread is not allowed to initiate a print job request
throws
PrinterException if an error in the print system causes the job to be aborted
see
#print(JTable.PrintMode, MessageFormat, MessageFormat, boolean, PrintRequestAttributeSet, boolean, PrintService)
see
#getPrintable
since
1.5


        return print(printMode,
                     headerFormat,
                     footerFormat,
                     showPrintDialog,
                     attr,
                     interactive,
                     null);
    
public booleanprint(javax.swing.JTable$PrintMode printMode, java.text.MessageFormat headerFormat, java.text.MessageFormat footerFormat, boolean showPrintDialog, javax.print.attribute.PrintRequestAttributeSet attr, boolean interactive, javax.print.PrintService service)
Prints this JTable. Takes steps that the majority of developers would take in order to print a JTable. In short, it prepares the table, calls getPrintable to fetch an appropriate Printable, and then sends it to the printer.

A boolean parameter allows you to specify whether or not a printing dialog is displayed to the user. When it is, the user may use the dialog to change the destination printer or printing attributes, or even to cancel the print. Another two parameters allow for a PrintService and printing attributes to be specified. These parameters can be used either to provide initial values for the print dialog, or to specify values when the dialog is not shown.

A second boolean parameter allows you to specify whether or not to perform printing in an interactive mode. If true, a modal progress dialog, with an abort option, is displayed for the duration of printing . This dialog also prevents any user action which may affect the table. However, it can not prevent the table from being modified by code (for example, another thread that posts updates using SwingUtilities.invokeLater). It is therefore the responsibility of the developer to ensure that no other code modifies the table in any way during printing (invalid modifications include changes in: size, renderers, or underlying data). Printing behavior is undefined when the table is changed during printing.

If false is specified for this parameter, no dialog will be displayed and printing will begin immediately on the event-dispatch thread. This blocks any other events, including repaints, from being processed until printing is complete. Although this effectively prevents the table from being changed, it doesn't provide a good user experience. For this reason, specifying false is only recommended when printing from an application with no visible GUI.

Note: Attempting to show the printing dialog or run interactively, while in headless mode, will result in a HeadlessException.

Before fetching the printable, this method will gracefully terminate editing, if necessary, to prevent an editor from showing in the printed result. Additionally, JTable will prepare its renderers during printing such that selection and focus are not indicated. As far as customizing further how the table looks in the printout, developers can provide custom renderers or paint code that conditionalize on the value of {@link javax.swing.JComponent#isPaintingForPrint()}.

See {@link #getPrintable} for more description on how the table is printed.

param
printMode the printing mode that the printable should use
param
headerFormat a MessageFormat specifying the text to be used in printing a header, or null for none
param
footerFormat a MessageFormat specifying the text to be used in printing a footer, or null for none
param
showPrintDialog whether or not to display a print dialog
param
attr a PrintRequestAttributeSet specifying any printing attributes, or null for none
param
interactive whether or not to print in an interactive mode
param
service the destination PrintService, or null to use the default printer
return
true, unless printing is cancelled by the user
throws
HeadlessException if the method is asked to show a printing dialog or run interactively, and GraphicsEnvironment.isHeadless returns true
throws
SecurityException if a security manager exists and its {@link java.lang.SecurityManager#checkPrintJobAccess} method disallows this thread from creating a print job request
throws
PrinterException if an error in the print system causes the job to be aborted
see
#getPrintable
see
java.awt.GraphicsEnvironment#isHeadless
since
1.6


        // complain early if an invalid parameter is specified for headless mode
        boolean isHeadless = GraphicsEnvironment.isHeadless();
        if (isHeadless) {
            if (showPrintDialog) {
                throw new HeadlessException("Can't show print dialog.");
            }
            
            if (interactive) {
                throw new HeadlessException("Can't run interactively.");
            }
        }

        // Get a PrinterJob.
        // Do this before anything with side-effects since it may throw a
        // security exception - in which case we don't want to do anything else.
        final PrinterJob job = PrinterJob.getPrinterJob();

        if (isEditing()) {
            // try to stop cell editing, and failing that, cancel it
            if (!getCellEditor().stopCellEditing()) {
                getCellEditor().cancelCellEditing();
            }
        }

        if (attr == null) {
            attr = new HashPrintRequestAttributeSet();
        }

        final PrintingStatus printingStatus;
        
         // fetch the Printable 
        Printable printable = 
             getPrintable(printMode, headerFormat, footerFormat); 
  
        if (interactive) { 
            // wrap the Printable so that we can print on another thread
            printable = new ThreadSafePrintable(printable);
            printingStatus = PrintingStatus.createPrintingStatus(this, job);
            printable = printingStatus.createNotificationPrintable(printable);
        } else {
            // to please compiler
            printingStatus = null;
        }
  
        // set the printable on the PrinterJob 
        job.setPrintable(printable); 
        
        // if specified, set the PrintService on the PrinterJob
        if (service != null) {
            job.setPrintService(service);
        }

        // if requested, show the print dialog
        if (showPrintDialog && !job.printDialog(attr)) {
            // the user cancelled the print dialog
            return false;
        }

        // if not interactive, just print on this thread (no dialog)
        if (!interactive) {
            // do the printing
            job.print(attr);

            // we're done
            return true;
        }

        // make sure this is clear since we'll check it after
        printError = null;

        // to synchronize on
        final Object lock = new Object();

        // copied so we can access from the inner class
        final PrintRequestAttributeSet copyAttr = attr;

        // this runnable will be used to do the printing
        // (and save any throwables) on another thread
        Runnable runnable = new Runnable() {
            public void run() {
                try {
                    // do the printing
                    job.print(copyAttr);
                } catch (Throwable t) {
                    // save any Throwable to be rethrown
                    synchronized(lock) {
                        printError = t;
                    }
                } finally {
                    // we're finished - hide the dialog
                    printingStatus.dispose();
                }
            }
        };

        // start printing on another thread
        Thread th = new Thread(runnable);
        th.start();
        
        printingStatus.showModal(true);

        // look for any error that the printing may have generated
        Throwable pe;
        synchronized(lock) {
            pe = printError;
            printError = null;
        }

        // check the type of error and handle it
        if (pe != null) {
            // a subclass of PrinterException meaning the job was aborted,
            // in this case, by the user
            if (pe instanceof PrinterAbortException) {
                return false;
            } else if (pe instanceof PrinterException) {
                throw (PrinterException)pe;
            } else if (pe instanceof RuntimeException) {
                throw (RuntimeException)pe;
            } else if (pe instanceof Error) {
                throw (Error)pe;
            }

            // can not happen
            throw new AssertionError(pe);
        }

        return true;
    
protected booleanprocessKeyBinding(javax.swing.KeyStroke ks, java.awt.event.KeyEvent e, int condition, boolean pressed)

	boolean retValue = super.processKeyBinding(ks, e, condition, pressed);

	// Start editing when a key is typed. UI classes can disable this behavior
	// by setting the client property JTable.autoStartsEdit to Boolean.FALSE.
	if (!retValue && condition == WHEN_ANCESTOR_OF_FOCUSED_COMPONENT &&
	    isFocusOwner() &&
	    !Boolean.FALSE.equals((Boolean)getClientProperty("JTable.autoStartsEdit"))) {
	    // We do not have a binding for the event.
	    Component editorComponent = getEditorComponent();
	    if (editorComponent == null) {
		// Only attempt to install the editor on a KEY_PRESSED,
		if (e == null || e.getID() != KeyEvent.KEY_PRESSED) {
		    return false;
		}
		// Don't start when just a modifier is pressed
		int code = e.getKeyCode();
		if (code == KeyEvent.VK_SHIFT || code == KeyEvent.VK_CONTROL ||
		    code == KeyEvent.VK_ALT) {
		    return false;
		}
		// Try to install the editor
		int leadRow = getSelectionModel().getLeadSelectionIndex();
		int leadColumn = getColumnModel().getSelectionModel().
		                   getLeadSelectionIndex();
		if (leadRow != -1 && leadColumn != -1 && !isEditing()) {
		    if (!editCellAt(leadRow, leadColumn, e)) {
			return false;
		    }
		}
		editorComponent = getEditorComponent();
		if (editorComponent == null) {
		    return false;
		}
	    }
	    // If the editorComponent is a JComponent, pass the event to it.
	    if (editorComponent instanceof JComponent) {
		retValue = ((JComponent)editorComponent).processKeyBinding
		                        (ks, e, WHEN_FOCUSED, pressed);
	        // If we have started an editor as a result of the user
	        // pressing a key and the surrendersFocusOnKeystroke property
	        // is true, give the focus to the new editor.
                if (getSurrendersFocusOnKeystroke()) {
                    editorComponent.requestFocus();
                }
	    }
	}
        return retValue;
    
private voidreadObject(java.io.ObjectInputStream s)

        s.defaultReadObject();
	if ((ui != null) && (getUIClassID().equals(uiClassID))) {
	    ui.installUI(this);
	}
        createDefaultRenderers();
        createDefaultEditors();

        // If ToolTipText != null, then the tooltip has already been
        // registered by JComponent.readObject() and we don't want
        // to re-register here
        if (getToolTipText() == null) {
            ToolTipManager.sharedInstance().registerComponent(this);
         }
    
public voidremoveColumn(javax.swing.table.TableColumn aColumn)
Removes aColumn from this JTable's array of columns. Note: this method does not remove the column of data from the model; it just removes the TableColumn that was responsible for displaying it.

param
aColumn the TableColumn to be removed
see
#addColumn

        getColumnModel().removeColumn(aColumn);
    
public voidremoveColumnSelectionInterval(int index0, int index1)
Deselects the columns from index0 to index1, inclusive.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getColumnCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        columnModel.getSelectionModel().removeSelectionInterval(boundColumn(index0), boundColumn(index1));
    
public voidremoveEditor()
Discards the editor object and frees the real estate it used for cell rendering.

        KeyboardFocusManager.getCurrentKeyboardFocusManager().
            removePropertyChangeListener("permanentFocusOwner", editorRemover);
	editorRemover = null;

        TableCellEditor editor = getCellEditor();
        if(editor != null) {
            editor.removeCellEditorListener(this);
            if (editorComp != null) {
                Component focusOwner = 
                        KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
                boolean isFocusOwnerInTheTable = focusOwner != null?   
                        SwingUtilities.isDescendingFrom(focusOwner, this):false;                    
                remove(editorComp);
                if(isFocusOwnerInTheTable) {
                    requestFocusInWindow();
                }
	    }

            Rectangle cellRect = getCellRect(editingRow, editingColumn, false);

            setCellEditor(null);
            setEditingColumn(-1);
            setEditingRow(-1);
            editorComp = null;

            repaint(cellRect);
        }
    
public voidremoveNotify()
Calls the unconfigureEnclosingScrollPane method.

see
#unconfigureEnclosingScrollPane

        KeyboardFocusManager.getCurrentKeyboardFocusManager().
            removePropertyChangeListener("permanentFocusOwner", editorRemover);
	editorRemover = null;
        unconfigureEnclosingScrollPane();
        super.removeNotify();
    
public voidremoveRowSelectionInterval(int index0, int index1)
Deselects the rows from index0 to index1, inclusive.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getRowCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        selectionModel.removeSelectionInterval(boundRow(index0), boundRow(index1));
    
private voidrepaintSortedRows(javax.swing.JTable$ModelChange change)
Repaints the sort of sorted rows in response to a TableModelEvent.

        if (change.startModelIndex > change.endModelIndex ||
                change.startModelIndex + 10 < change.endModelIndex) {
            // Too much has changed, punt
            repaint();
            return;
        }
        int eventColumn = change.event.getColumn();
        int columnViewIndex = eventColumn;
        if (columnViewIndex == TableModelEvent.ALL_COLUMNS) {
            columnViewIndex = 0;
        }
        else {
            columnViewIndex = convertColumnIndexToView(columnViewIndex);
            if (columnViewIndex == -1) {
                return;
            }
        }
        int modelIndex = change.startModelIndex;
        while (modelIndex <= change.endModelIndex) {
            int viewIndex = convertRowIndexToView(modelIndex++);
            if (viewIndex != -1) {
                Rectangle dirty = getCellRect(viewIndex, columnViewIndex,
                                              false);
                int x = dirty.x;
                int w = dirty.width;
                if (eventColumn == TableModelEvent.ALL_COLUMNS) {
                    x = 0;
                    w = getWidth();
                }
                repaint(x, dirty.y, w, dirty.height);
            }
        }
    
protected voidresizeAndRepaint()
Equivalent to revalidate followed by repaint.

        revalidate();
        repaint();
    
private voidrestoreSortingEditingRow(int editingRow)
Restores the editing row after a model event/sort order change.

param
editingRow new index of the editingRow, in terms of the view

        if (editingRow == -1) {
            // Editing row no longer being shown, cancel editing
            TableCellEditor editor = getCellEditor();
            if (editor != null) {
                // First try and cancel
                editor.cancelCellEditing();
                if (getCellEditor() != null) {
                    // CellEditor didn't cede control, forcefully
                    // remove it
                    removeEditor();
                }
            }
        }
        else {
            // Repositioning handled in BasicTableUI
            this.editingRow = editingRow;
            repaint();
        }
    
private voidrestoreSortingSelection(int[] selection, int lead, javax.swing.JTable$ModelChange change)
Restores the selection after a model event/sort order changes. All coordinates are in terms of the model.

        // Convert the selection from model to view
        for (int i = selection.length - 1; i >= 0; i--) {
            selection[i] = convertRowIndexToView(selection[i], change);
        }
        lead = convertRowIndexToView(lead, change);

        // Check for the common case of no change in selection for 1 row
        if (selection.length == 0 ||
            (selection.length == 1 && selection[0] == getSelectedRow())) {
            return;
        }

        // And apply the new selection
        selectionModel.setValueIsAdjusting(true);
        selectionModel.clearSelection();
        for (int i = selection.length - 1; i >= 0; i--) {
            if (selection[i] != -1) {
                selectionModel.addSelectionInterval(selection[i],
                                                    selection[i]);
            }
        }
        SwingUtilities2.setLeadAnchorWithoutSelection(
                selectionModel, lead, lead);
        selectionModel.setValueIsAdjusting(false);
    
public introwAtPoint(java.awt.Point point)
Returns the index of the row that point lies in, or -1 if the result is not in the range [0, getRowCount()-1].

param
point the location of interest
return
the index of the row that point lies in, or -1 if the result is not in the range [0, getRowCount()-1]
see
#columnAtPoint

        int y = point.y;
	int result = (rowModel == null) ?  y/getRowHeight() : rowModel.getIndex(y);
        if (result < 0) {
            return -1;
        }
        else if (result >= getRowCount()) {
            return -1;
        }
        else {
            return result;
        }
    
public voidselectAll()
Selects all rows, columns, and cells in the table.

        // If I'm currently editing, then I should stop editing
        if (isEditing()) {
            removeEditor();
        }
	if (getRowCount() > 0 && getColumnCount() > 0) {
            int oldLead;
            int oldAnchor;
            ListSelectionModel selModel;

            selModel = selectionModel;
            selModel.setValueIsAdjusting(true);
            oldLead = getAdjustedIndex(selModel.getLeadSelectionIndex(), true);
            oldAnchor = getAdjustedIndex(selModel.getAnchorSelectionIndex(), true);

            setRowSelectionInterval(0, getRowCount()-1);

            // this is done to restore the anchor and lead
            SwingUtilities2.setLeadAnchorWithoutSelection(selModel, oldLead, oldAnchor);

            selModel.setValueIsAdjusting(false);

            selModel = columnModel.getSelectionModel();
            selModel.setValueIsAdjusting(true);
            oldLead = getAdjustedIndex(selModel.getLeadSelectionIndex(), false);
            oldAnchor = getAdjustedIndex(selModel.getAnchorSelectionIndex(), false);

            setColumnSelectionInterval(0, getColumnCount()-1);

            // this is done to restore the anchor and lead
            SwingUtilities2.setLeadAnchorWithoutSelection(selModel, oldLead, oldAnchor);

            selModel.setValueIsAdjusting(false);        
	}
    
public voidsetAutoCreateColumnsFromModel(boolean autoCreateColumnsFromModel)
Sets this table's autoCreateColumnsFromModel flag. This method calls createDefaultColumnsFromModel if autoCreateColumnsFromModel changes from false to true.

param
autoCreateColumnsFromModel true if JTable should automatically create columns
see
#getAutoCreateColumnsFromModel
see
#createDefaultColumnsFromModel
beaninfo
bound: true description: Automatically populates the columnModel when a new TableModel is submitted.

        if (this.autoCreateColumnsFromModel != autoCreateColumnsFromModel) {
	    boolean old = this.autoCreateColumnsFromModel;
            this.autoCreateColumnsFromModel = autoCreateColumnsFromModel;
            if (autoCreateColumnsFromModel) {
                createDefaultColumnsFromModel();
	    }
	    firePropertyChange("autoCreateColumnsFromModel", old, autoCreateColumnsFromModel);
        }
    
public voidsetAutoCreateRowSorter(boolean autoCreateRowSorter)
Specifies whether a {@code RowSorter} should be created for the table whenever its model changes.

When {@code setAutoCreateRowSorter(true)} is invoked, a {@code TableRowSorter} is immediately created and installed on the table. While the {@code autoCreateRowSorter} property remains {@code true}, every time the model is changed, a new {@code TableRowSorter} is created and set as the table's row sorter.

param
autoCreateRowSorter whether or not a {@code RowSorter} should be automatically created
see
javax.swing.table.TableRowSorter
beaninfo
bound: true preferred: true description: Whether or not to turn on sorting by default.
since
1.6

        boolean oldValue = this.autoCreateRowSorter;
        this.autoCreateRowSorter = autoCreateRowSorter;
        if (autoCreateRowSorter) {
            setRowSorter(new TableRowSorter(getModel()));
        }
        firePropertyChange("autoCreateRowSorter", oldValue,
                           autoCreateRowSorter);
    
public voidsetAutoResizeMode(int mode)
Sets the table's auto resize mode when the table is resized.

param
mode One of 5 legal values: AUTO_RESIZE_OFF, AUTO_RESIZE_NEXT_COLUMN, AUTO_RESIZE_SUBSEQUENT_COLUMNS, AUTO_RESIZE_LAST_COLUMN, AUTO_RESIZE_ALL_COLUMNS
see
#getAutoResizeMode
see
#doLayout
beaninfo
bound: true description: Whether the columns should adjust themselves automatically. enum: AUTO_RESIZE_OFF JTable.AUTO_RESIZE_OFF AUTO_RESIZE_NEXT_COLUMN JTable.AUTO_RESIZE_NEXT_COLUMN AUTO_RESIZE_SUBSEQUENT_COLUMNS JTable.AUTO_RESIZE_SUBSEQUENT_COLUMNS AUTO_RESIZE_LAST_COLUMN JTable.AUTO_RESIZE_LAST_COLUMN AUTO_RESIZE_ALL_COLUMNS JTable.AUTO_RESIZE_ALL_COLUMNS

        if ((mode == AUTO_RESIZE_OFF) ||
            (mode == AUTO_RESIZE_NEXT_COLUMN) ||
            (mode == AUTO_RESIZE_SUBSEQUENT_COLUMNS) ||
            (mode == AUTO_RESIZE_LAST_COLUMN) ||
            (mode == AUTO_RESIZE_ALL_COLUMNS)) {
	    int old = autoResizeMode;
            autoResizeMode = mode;
            resizeAndRepaint();
            if (tableHeader != null) {
		tableHeader.resizeAndRepaint();
	    }
	    firePropertyChange("autoResizeMode", old, autoResizeMode);
        }
    
public voidsetCellEditor(javax.swing.table.TableCellEditor anEditor)
Sets the active cell editor.

param
anEditor the active cell editor
see
#cellEditor
beaninfo
bound: true description: The table's active cell editor.

	TableCellEditor oldEditor = cellEditor;
        cellEditor = anEditor;
	firePropertyChange("tableCellEditor", oldEditor, anEditor);
    
public voidsetCellSelectionEnabled(boolean cellSelectionEnabled)
Sets whether this table allows both a column selection and a row selection to exist simultaneously. When set, the table treats the intersection of the row and column selection models as the selected cells. Override isCellSelected to change this default behavior. This method is equivalent to setting both the rowSelectionAllowed property and columnSelectionAllowed property of the columnModel to the supplied value.

param
cellSelectionEnabled true if simultaneous row and column selection is allowed
see
#getCellSelectionEnabled
see
#isCellSelected
beaninfo
bound: true attribute: visualUpdate true description: Select a rectangular region of cells rather than rows or columns.

	setRowSelectionAllowed(cellSelectionEnabled);
	setColumnSelectionAllowed(cellSelectionEnabled);
        boolean old = this.cellSelectionEnabled;
	this.cellSelectionEnabled = cellSelectionEnabled;
	firePropertyChange("cellSelectionEnabled", old, cellSelectionEnabled);
    
public voidsetColumnModel(javax.swing.table.TableColumnModel columnModel)
Sets the column model for this table to newModel and registers for listener notifications from the new column model. Also sets the column model of the JTableHeader to columnModel.

param
columnModel the new data source for this table
exception
IllegalArgumentException if columnModel is null
see
#getColumnModel
beaninfo
bound: true description: The object governing the way columns appear in the view.

        if (columnModel == null) {
            throw new IllegalArgumentException("Cannot set a null ColumnModel");
        }
        TableColumnModel old = this.columnModel;
        if (columnModel != old) {
            if (old != null) {
                old.removeColumnModelListener(this);
	    }
            this.columnModel = columnModel;
            columnModel.addColumnModelListener(this);

            // Set the column model of the header as well.
            if (tableHeader != null) {
                tableHeader.setColumnModel(columnModel);
            }

	    firePropertyChange("columnModel", old, columnModel);
            resizeAndRepaint();
        }
    
public voidsetColumnSelectionAllowed(boolean columnSelectionAllowed)
Sets whether the columns in this model can be selected.

param
columnSelectionAllowed true if this model will allow column selection
see
#getColumnSelectionAllowed
beaninfo
bound: true attribute: visualUpdate true description: If true, an entire column is selected for each selected cell.

	boolean old = columnModel.getColumnSelectionAllowed();
        columnModel.setColumnSelectionAllowed(columnSelectionAllowed);
        if (old != columnSelectionAllowed) {
            repaint();
        }
	firePropertyChange("columnSelectionAllowed", old, columnSelectionAllowed);
    
public voidsetColumnSelectionInterval(int index0, int index1)
Selects the columns from index0 to index1, inclusive.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getColumnCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        columnModel.getSelectionModel().setSelectionInterval(boundColumn(index0), boundColumn(index1));
    
public voidsetDefaultEditor(java.lang.Class columnClass, javax.swing.table.TableCellEditor editor)
Sets a default cell editor to be used if no editor has been set in a TableColumn. If no editing is required in a table, or a particular column in a table, uses the isCellEditable method in the TableModel interface to ensure that this JTable will not start an editor in these columns. If editor is null, removes the default editor for this column class.

param
columnClass set the default cell editor for this columnClass
param
editor default cell editor to be used for this columnClass
see
TableModel#isCellEditable
see
#getDefaultEditor
see
#setDefaultRenderer

        if (editor != null) {
	    defaultEditorsByColumnClass.put(columnClass, editor);
	}
	else {
	    defaultEditorsByColumnClass.remove(columnClass);
	}
    
public voidsetDefaultRenderer(java.lang.Class columnClass, javax.swing.table.TableCellRenderer renderer)
Sets a default cell renderer to be used if no renderer has been set in a TableColumn. If renderer is null, removes the default renderer for this column class.

param
columnClass set the default cell renderer for this columnClass
param
renderer default cell renderer to be used for this columnClass
see
#getDefaultRenderer
see
#setDefaultEditor

	if (renderer != null) {
	    defaultRenderersByColumnClass.put(columnClass, renderer);
	}
	else {
	    defaultRenderersByColumnClass.remove(columnClass);
	}
    
public voidsetDragEnabled(boolean b)
Turns on or off automatic drag handling. In order to enable automatic drag handling, this property should be set to {@code true}, and the table's {@code TransferHandler} needs to be {@code non-null}. The default value of the {@code dragEnabled} property is {@code false}.

The job of honoring this property, and recognizing a user drag gesture, lies with the look and feel implementation, and in particular, the table's {@code TableUI}. When automatic drag handling is enabled, most look and feels (including those that subclass {@code BasicLookAndFeel}) begin a drag and drop operation whenever the user presses the mouse button over an item (in single selection mode) or a selection (in other selection modes) and then moves the mouse a few pixels. Setting this property to {@code true} can therefore have a subtle effect on how selections behave.

If a look and feel is used that ignores this property, you can still begin a drag and drop operation by calling {@code exportAsDrag} on the table's {@code TransferHandler}.

param
b whether or not to enable automatic drag handling
exception
HeadlessException if b is true and GraphicsEnvironment.isHeadless() returns true
see
java.awt.GraphicsEnvironment#isHeadless
see
#getDragEnabled
see
#setTransferHandler
see
TransferHandler
since
1.4
beaninfo
description: determines whether automatic drag handling is enabled bound: false

        if (b && GraphicsEnvironment.isHeadless()) {
            throw new HeadlessException();
        }
	dragEnabled = b;
    
java.lang.ObjectsetDropLocation(javax.swing.TransferHandler$DropLocation location, java.lang.Object state, boolean forDrop)
Called to set or clear the drop location during a DnD operation. In some cases, the component may need to use it's internal selection temporarily to indicate the drop location. To help facilitate this, this method returns and accepts as a parameter a state object. This state object can be used to store, and later restore, the selection state. Whatever this method returns will be passed back to it in future calls, as the state parameter. If it wants the DnD system to continue storing the same state, it must pass it back every time. Here's how this is used:

Let's say that on the first call to this method the component decides to save some state (because it is about to use the selection to show a drop index). It can return a state object to the caller encapsulating any saved selection state. On a second call, let's say the drop location is being changed to something else. The component doesn't need to restore anything yet, so it simply passes back the same state object to have the DnD system continue storing it. Finally, let's say this method is messaged with null. This means DnD is finished with this component for now, meaning it should restore state. At this point, it can use the state parameter to restore said state, and of course return null since there's no longer anything to store.

param
location the drop location (as calculated by dropLocationForPoint) or null if there's no longer a valid drop location
param
state the state object saved earlier for this component, or null
param
forDrop whether or not the method is being called because an actual drop occurred
return
any saved state for this component, or null if none


        Object retVal = null;
        DropLocation tableLocation = (DropLocation)location;

        if (dropMode == DropMode.USE_SELECTION) {
            if (tableLocation == null) {
                if (!forDrop && state != null) {
                    clearSelection();

                    int[] rows = (int[])((int[][])state)[0];
                    int[] cols = (int[])((int[][])state)[1];
                    int[] anchleads = (int[])((int[][])state)[2];

                    for (int i = 0; i < rows.length; i++) {
                        addRowSelectionInterval(rows[i], rows[i]);
                    }

                    for (int i = 0; i < cols.length; i++) {
                        addColumnSelectionInterval(cols[i], cols[i]);
                    }

                    SwingUtilities2.setLeadAnchorWithoutSelection(
                            getSelectionModel(), anchleads[1], anchleads[0]);

                    SwingUtilities2.setLeadAnchorWithoutSelection(
                            getColumnModel().getSelectionModel(),
                            anchleads[3], anchleads[2]);
                }
            } else {
                if (dropLocation == null) {
                    retVal = new int[][]{
                        getSelectedRows(),
                        getSelectedColumns(),
                        {getAdjustedIndex(getSelectionModel()
                             .getAnchorSelectionIndex(), true),
                         getAdjustedIndex(getSelectionModel()
                             .getLeadSelectionIndex(), true),
                         getAdjustedIndex(getColumnModel().getSelectionModel()
                             .getAnchorSelectionIndex(), false),
                         getAdjustedIndex(getColumnModel().getSelectionModel()
                             .getLeadSelectionIndex(), false)}};
                } else {
                    retVal = state;
                }

                if (tableLocation.getRow() == -1) {
                    clearSelectionAndLeadAnchor();
                } else {
                    setRowSelectionInterval(tableLocation.getRow(),
                                            tableLocation.getRow());
                    setColumnSelectionInterval(tableLocation.getColumn(),
                                               tableLocation.getColumn());
                }
            }
        }

        DropLocation old = dropLocation;
        dropLocation = tableLocation;
        firePropertyChange("dropLocation", old, dropLocation);

        return retVal;
    
public final voidsetDropMode(javax.swing.DropMode dropMode)
Sets the drop mode for this component. For backward compatibility, the default for this property is DropMode.USE_SELECTION. Usage of one of the other modes is recommended, however, for an improved user experience. DropMode.ON, for instance, offers similar behavior of showing items as selected, but does so without affecting the actual selection in the table.

JTable supports the following drop modes:

  • DropMode.USE_SELECTION
  • DropMode.ON
  • DropMode.INSERT
  • DropMode.INSERT_ROWS
  • DropMode.INSERT_COLS
  • DropMode.ON_OR_INSERT
  • DropMode.ON_OR_INSERT_ROWS
  • DropMode.ON_OR_INSERT_COLS

The drop mode is only meaningful if this component has a TransferHandler that accepts drops.

param
dropMode the drop mode to use
throws
IllegalArgumentException if the drop mode is unsupported or null
see
#getDropMode
see
#getDropLocation
see
#setTransferHandler
see
TransferHandler
since
1.6

        if (dropMode != null) {
            switch (dropMode) {
                case USE_SELECTION:
                case ON:
                case INSERT:
                case INSERT_ROWS:
                case INSERT_COLS:
                case ON_OR_INSERT:
                case ON_OR_INSERT_ROWS:
                case ON_OR_INSERT_COLS:
                    this.dropMode = dropMode;
                    return;
            }
        }

        throw new IllegalArgumentException(dropMode + ": Unsupported drop mode for table");
    
public voidsetEditingColumn(int aColumn)
Sets the editingColumn variable.

param
aColumn the column of the cell to be edited
see
#editingColumn

        editingColumn = aColumn;
    
public voidsetEditingRow(int aRow)
Sets the editingRow variable.

param
aRow the row of the cell to be edited
see
#editingRow

        editingRow = aRow;
    
public voidsetFillsViewportHeight(boolean fillsViewportHeight)
Sets whether or not this table is always made large enough to fill the height of an enclosing viewport. If the preferred height of the table is smaller than the viewport, then the table will be stretched to fill the viewport. In other words, this ensures the table is never smaller than the viewport. The default for this property is {@code false}.

param
fillsViewportHeight whether or not this table is always made large enough to fill the height of an enclosing viewport
see
#getFillsViewportHeight
see
#getScrollableTracksViewportHeight
since
1.6
beaninfo
bound: true description: Whether or not this table is always made large enough to fill the height of an enclosing viewport

        boolean old = this.fillsViewportHeight;
        this.fillsViewportHeight = fillsViewportHeight;
        resizeAndRepaint();
        firePropertyChange("fillsViewportHeight", old, fillsViewportHeight);
    
public voidsetGridColor(java.awt.Color gridColor)
Sets the color used to draw grid lines to gridColor and redisplays. The default color is look and feel dependent.

param
gridColor the new color of the grid lines
exception
IllegalArgumentException if gridColor is null
see
#getGridColor
beaninfo
bound: true description: The grid color.

        if (gridColor == null) {
            throw new IllegalArgumentException("New color is null");
        }
	Color old = this.gridColor;
        this.gridColor = gridColor;
	firePropertyChange("gridColor", old, gridColor);
        // Redraw
        repaint();
    
public voidsetIntercellSpacing(java.awt.Dimension intercellSpacing)
Sets the rowMargin and the columnMargin -- the height and width of the space between cells -- to intercellSpacing.

param
intercellSpacing a Dimension specifying the new width and height between cells
see
#getIntercellSpacing
beaninfo
description: The spacing between the cells, drawn in the background color of the JTable.

        // Set the rowMargin here and columnMargin in the TableColumnModel
        setRowMargin(intercellSpacing.height);
        getColumnModel().setColumnMargin(intercellSpacing.width);

        resizeAndRepaint();
    
private voidsetLazyEditor(java.lang.Class c, java.lang.String s)

	setLazyValue(defaultEditorsByColumnClass, c, s);
    
private voidsetLazyRenderer(java.lang.Class c, java.lang.String s)

	setLazyValue(defaultRenderersByColumnClass, c, s);
    
private voidsetLazyValue(java.util.Hashtable h, java.lang.Class c, java.lang.String s)

	h.put(c, new UIDefaults.ProxyLazyValue(s));
    
public voidsetModel(javax.swing.table.TableModel dataModel)
Sets the data model for this table to newModel and registers with it for listener notifications from the new data model.

param
dataModel the new data source for this table
exception
IllegalArgumentException if newModel is null
see
#getModel
beaninfo
bound: true description: The model that is the source of the data for this view.

        if (dataModel == null) {
            throw new IllegalArgumentException("Cannot set a null TableModel");
	}
        if (this.dataModel != dataModel) {
	    TableModel old = this.dataModel;
            if (old != null) {
                old.removeTableModelListener(this);
	    }
            this.dataModel = dataModel;
            dataModel.addTableModelListener(this);

            tableChanged(new TableModelEvent(dataModel, TableModelEvent.HEADER_ROW));

	    firePropertyChange("model", old, dataModel);

            if (getAutoCreateRowSorter()) {
                setRowSorter(new TableRowSorter(dataModel));
            }
        }
    
public voidsetPreferredScrollableViewportSize(java.awt.Dimension size)
Sets the preferred size of the viewport for this table.

param
size a Dimension object specifying the preferredSize of a JViewport whose view is this table
see
Scrollable#getPreferredScrollableViewportSize
beaninfo
description: The preferred size of the viewport.

        preferredViewportSize = size;
    
public voidsetRowHeight(int rowHeight)
Sets the height, in pixels, of all cells to rowHeight, revalidates, and repaints. The height of the cells will be equal to the row height minus the row margin.

param
rowHeight new row height
exception
IllegalArgumentException if rowHeight is less than 1
see
#getRowHeight
beaninfo
bound: true description: The height of the specified row.

        if (rowHeight <= 0) {
            throw new IllegalArgumentException("New row height less than 1");
        }
	int old = this.rowHeight;
        this.rowHeight = rowHeight;
	rowModel = null;
        if (sortManager != null) {
            sortManager.modelRowSizes = null;
        }
        isRowHeightSet = true;
        resizeAndRepaint();
	firePropertyChange("rowHeight", old, rowHeight);
    
public voidsetRowHeight(int row, int rowHeight)
Sets the height for row to rowHeight, revalidates, and repaints. The height of the cells in this row will be equal to the row height minus the row margin.

param
row the row whose height is being changed
param
rowHeight new row height, in pixels
exception
IllegalArgumentException if rowHeight is less than 1
beaninfo
bound: true description: The height in pixels of the cells in row
since
1.3

        if (rowHeight <= 0) {
            throw new IllegalArgumentException("New row height less than 1");
        }
	getRowModel().setSize(row, rowHeight);
        if (sortManager != null) {
            sortManager.setViewRowHeight(row, rowHeight);
        }
	resizeAndRepaint();
    
public voidsetRowMargin(int rowMargin)
Sets the amount of empty space between cells in adjacent rows.

param
rowMargin the number of pixels between cells in a row
see
#getRowMargin
beaninfo
bound: true description: The amount of space between cells.

	int old = this.rowMargin;
        this.rowMargin = rowMargin;
        resizeAndRepaint();
	firePropertyChange("rowMargin", old, rowMargin);
    
public voidsetRowSelectionAllowed(boolean rowSelectionAllowed)
Sets whether the rows in this model can be selected.

param
rowSelectionAllowed true if this model will allow row selection
see
#getRowSelectionAllowed
beaninfo
bound: true attribute: visualUpdate true description: If true, an entire row is selected for each selected cell.

	boolean old = this.rowSelectionAllowed;
        this.rowSelectionAllowed = rowSelectionAllowed;
        if (old != rowSelectionAllowed) {
            repaint();
        }
	firePropertyChange("rowSelectionAllowed", old, rowSelectionAllowed);
    
public voidsetRowSelectionInterval(int index0, int index1)
Selects the rows from index0 to index1, inclusive.

exception
IllegalArgumentException if index0 or index1 lie outside [0, getRowCount()-1]
param
index0 one end of the interval
param
index1 the other end of the interval

        selectionModel.setSelectionInterval(boundRow(index0), boundRow(index1));
    
public voidsetRowSorter(javax.swing.RowSorter sorter)
Sets the RowSorter. RowSorter is used to provide sorting and filtering to a JTable.

This method clears the selection and resets any variable row heights.

If the underlying model of the RowSorter differs from that of this JTable undefined behavior will result.

param
sorter the RowSorter; null turns sorting off
see
javax.swing.table.TableRowSorter
since
1.6

        RowSorter<? extends TableModel> oldRowSorter = null;
        if (sortManager != null) {
            oldRowSorter = sortManager.sorter;
            sortManager.dispose();
            sortManager = null;
        }
        rowModel = null;
        clearSelectionAndLeadAnchor();
        if (sorter != null) {
            sortManager = new SortManager(sorter);
        }
        resizeAndRepaint();
        firePropertyChange("rowSorter", oldRowSorter, sorter);
        firePropertyChange("sorter", oldRowSorter, sorter);
    
public voidsetSelectionBackground(java.awt.Color selectionBackground)
Sets the background color for selected cells. Cell renderers can use this color to the fill selected cells.

The default value of this property is defined by the look and feel implementation.

This is a JavaBeans bound property.

param
selectionBackground the Color to use for the background of selected cells
see
#getSelectionBackground
see
#setSelectionForeground
see
#setForeground
see
#setBackground
see
#setFont
beaninfo
bound: true description: A default background color for selected cells.

        Color old = this.selectionBackground;
        this.selectionBackground = selectionBackground;
        firePropertyChange("selectionBackground", old, selectionBackground);
        if ( !selectionBackground.equals(old) )
        {
            repaint();
        }
    
public voidsetSelectionForeground(java.awt.Color selectionForeground)
Sets the foreground color for selected cells. Cell renderers can use this color to render text and graphics for selected cells.

The default value of this property is defined by the look and feel implementation.

This is a JavaBeans bound property.

param
selectionForeground the Color to use in the foreground for selected list items
see
#getSelectionForeground
see
#setSelectionBackground
see
#setForeground
see
#setBackground
see
#setFont
beaninfo
bound: true description: A default foreground color for selected cells.

        Color old = this.selectionForeground;
        this.selectionForeground = selectionForeground;
        firePropertyChange("selectionForeground", old, selectionForeground);
        if ( !selectionForeground.equals(old) )
        {
            repaint();
        }
    
public voidsetSelectionMode(int selectionMode)
Sets the table's selection mode to allow only single selections, a single contiguous interval, or multiple intervals.

Note: JTable provides all the methods for handling column and row selection. When setting states, such as setSelectionMode, it not only updates the mode for the row selection model but also sets similar values in the selection model of the columnModel. If you want to have the row and column selection models operating in different modes, set them both directly.

Both the row and column selection models for JTable default to using a DefaultListSelectionModel so that JTable works the same way as the JList. See the setSelectionMode method in JList for details about the modes.

see
JList#setSelectionMode
beaninfo
description: The selection mode used by the row and column selection models. enum: SINGLE_SELECTION ListSelectionModel.SINGLE_SELECTION SINGLE_INTERVAL_SELECTION ListSelectionModel.SINGLE_INTERVAL_SELECTION MULTIPLE_INTERVAL_SELECTION ListSelectionModel.MULTIPLE_INTERVAL_SELECTION

        clearSelection();
        getSelectionModel().setSelectionMode(selectionMode);
        getColumnModel().getSelectionModel().setSelectionMode(selectionMode);
    
public voidsetSelectionModel(javax.swing.ListSelectionModel newModel)
Sets the row selection model for this table to newModel and registers for listener notifications from the new selection model.

param
newModel the new selection model
exception
IllegalArgumentException if newModel is null
see
#getSelectionModel
beaninfo
bound: true description: The selection model for rows.

        if (newModel == null) {
            throw new IllegalArgumentException("Cannot set a null SelectionModel");
        }

        ListSelectionModel oldModel = selectionModel;

        if (newModel != oldModel) {
            if (oldModel != null) {
                oldModel.removeListSelectionListener(this);
            }

            selectionModel = newModel;
            newModel.addListSelectionListener(this);

	    firePropertyChange("selectionModel", oldModel, newModel);
            repaint();
        }
    
public voidsetShowGrid(boolean showGrid)
Sets whether the table draws grid lines around cells. If showGrid is true it does; if it is false it doesn't. There is no getShowGrid method as this state is held in two variables -- showHorizontalLines and showVerticalLines -- each of which can be queried independently.

param
showGrid true if table view should draw grid lines
see
#setShowVerticalLines
see
#setShowHorizontalLines
beaninfo
description: The color used to draw the grid lines.

        setShowHorizontalLines(showGrid);
        setShowVerticalLines(showGrid);

        // Redraw
        repaint();
    
public voidsetShowHorizontalLines(boolean showHorizontalLines)
Sets whether the table draws horizontal lines between cells. If showHorizontalLines is true it does; if it is false it doesn't.

param
showHorizontalLines true if table view should draw horizontal lines
see
#getShowHorizontalLines
see
#setShowGrid
see
#setShowVerticalLines
beaninfo
bound: true description: Whether horizontal lines should be drawn in between the cells.

        boolean old = this.showHorizontalLines;
	this.showHorizontalLines = showHorizontalLines;
	firePropertyChange("showHorizontalLines", old, showHorizontalLines);

        // Redraw
        repaint();
    
public voidsetShowVerticalLines(boolean showVerticalLines)
Sets whether the table draws vertical lines between cells. If showVerticalLines is true it does; if it is false it doesn't.

param
showVerticalLines true if table view should draw vertical lines
see
#getShowVerticalLines
see
#setShowGrid
see
#setShowHorizontalLines
beaninfo
bound: true description: Whether vertical lines should be drawn in between the cells.

        boolean old = this.showVerticalLines;
	this.showVerticalLines = showVerticalLines;
	firePropertyChange("showVerticalLines", old, showVerticalLines);
        // Redraw
        repaint();
    
public voidsetSurrendersFocusOnKeystroke(boolean surrendersFocusOnKeystroke)
Sets whether editors in this JTable get the keyboard focus when an editor is activated as a result of the JTable forwarding keyboard events for a cell. By default, this property is false, and the JTable retains the focus unless the cell is clicked.

param
surrendersFocusOnKeystroke true if the editor should get the focus when keystrokes cause the editor to be activated
see
#getSurrendersFocusOnKeystroke
since
1.4

        this.surrendersFocusOnKeystroke = surrendersFocusOnKeystroke;
    
public voidsetTableHeader(javax.swing.table.JTableHeader tableHeader)
Sets the tableHeader working with this JTable to newHeader. It is legal to have a null tableHeader.

param
tableHeader new tableHeader
see
#getTableHeader
beaninfo
bound: true description: The JTableHeader instance which renders the column headers.

        if (this.tableHeader != tableHeader) {
	    JTableHeader old = this.tableHeader;
            // Release the old header
            if (old != null) {
                old.setTable(null);
	    }
            this.tableHeader = tableHeader;
            if (tableHeader != null) {
                tableHeader.setTable(this);
	    }
	    firePropertyChange("tableHeader", old, tableHeader);
        }
    
public voidsetUI(javax.swing.plaf.TableUI ui)
Sets the L&F object that renders this component and repaints.

param
ui the TableUI L&F object
see
UIDefaults#getUI
beaninfo
bound: true hidden: true attribute: visualUpdate true description: The UI object that implements the Component's LookAndFeel.

        if (this.ui != ui) {
            super.setUI(ui);
            repaint();
        }
    
voidsetUIProperty(java.lang.String propertyName, java.lang.Object value)

        if (propertyName == "rowHeight") {
            if (!isRowHeightSet) {
                setRowHeight(((Number)value).intValue());
                isRowHeightSet = false;
            }
            return;
        }
        super.setUIProperty(propertyName, value);
    
public voidsetUpdateSelectionOnSort(boolean update)
Specifies whether the selection should be updated after sorting. If true, on sorting the selection is reset such that the same rows, in terms of the model, remain selected. The default is true.

param
update whether or not to update the selection on sorting
beaninfo
bound: true expert: true description: Whether or not to update the selection on sorting
since
1.6

        if (updateSelectionOnSort != update) {
            updateSelectionOnSort = update;
            firePropertyChange("updateSelectionOnSort", !update, update);
        }
    
public voidsetValueAt(java.lang.Object aValue, int row, int column)
Sets the value for the cell in the table model at row and column.

Note: The column is specified in the table view's display order, and not in the TableModel's column order. This is an important distinction because as the user rearranges the columns in the table, the column at a given index in the view will change. Meanwhile the user's actions never affect the model's column ordering. aValue is the new value.

param
aValue the new value
param
row the row of the cell to be changed
param
column the column of the cell to be changed
see
#getValueAt

        getModel().setValueAt(aValue, convertRowIndexToModel(row),
                              convertColumnIndexToModel(column));
    
private voidsetWidthsFromPreferredWidths(boolean inverse)

        int totalWidth     = getWidth();
	int totalPreferred = getPreferredSize().width;
	int target = !inverse ? totalWidth : totalPreferred;

	final TableColumnModel cm = columnModel;
	Resizable3 r = new Resizable3() {
	    public int  getElementCount()      { return cm.getColumnCount(); }
	    public int  getLowerBoundAt(int i) { return cm.getColumn(i).getMinWidth(); }
	    public int  getUpperBoundAt(int i) { return cm.getColumn(i).getMaxWidth(); }
	    public int  getMidPointAt(int i)  {
	        if (!inverse) {
		    return cm.getColumn(i).getPreferredWidth();
	        }
	        else {
		    return cm.getColumn(i).getWidth();
	        }
	    }
	    public void setSizeAt(int s, int i) {
	        if (!inverse) {
		    cm.getColumn(i).setWidth(s);
	        }
	        else {
		    cm.getColumn(i).setPreferredWidth(s);
	        }
	    }
	};

	adjustSizes(target, r, inverse);
    
public voidsizeColumnsToFit(boolean lastColumnOnly)
Sizes the table columns to fit the available space.

deprecated
As of Swing version 1.0.3, replaced by doLayout().
see
#doLayout

        int oldAutoResizeMode = autoResizeMode;
        setAutoResizeMode(lastColumnOnly ? AUTO_RESIZE_LAST_COLUMN
                                         : AUTO_RESIZE_ALL_COLUMNS);
        sizeColumnsToFit(-1);
        setAutoResizeMode(oldAutoResizeMode);
    
public voidsizeColumnsToFit(int resizingColumn)
Obsolete as of Java 2 platform v1.4. Please use the doLayout() method instead.

param
resizingColumn the column whose resizing made this adjustment necessary or -1 if there is no such column
see
#doLayout

        if (resizingColumn == -1) {
            setWidthsFromPreferredWidths(false);
	}
	else {
	    if (autoResizeMode == AUTO_RESIZE_OFF) {
                TableColumn aColumn = getColumnModel().getColumn(resizingColumn);
                aColumn.setPreferredWidth(aColumn.getWidth());
	    }
	    else {
                int delta = getWidth() - getColumnModel().getTotalColumnWidth();
	        accommodateDelta(resizingColumn, delta);
                setWidthsFromPreferredWidths(true);
	    }
	}
    
private voidsortedTableChanged(javax.swing.event.RowSorterEvent sortedEvent, javax.swing.event.TableModelEvent e)
Invoked when sorterChanged is invoked, or when tableChanged is invoked and sorting is enabled.

        int editingModelIndex = -1;
        ModelChange change = (e != null) ? new ModelChange(e) : null;

        if ((change == null || !change.allRowsChanged) &&
                this.editingRow != -1) {
            editingModelIndex = convertRowIndexToModel(sortedEvent,
                                                       this.editingRow);
        }

        sortManager.prepareForChange(sortedEvent, change);

        if (e != null) {
            if (change.type == TableModelEvent.UPDATE) {
                repaintSortedRows(change);
            }
            notifySorter(change);
            if (change.type != TableModelEvent.UPDATE) {
                // If the Sorter is unsorted we will not have received
                // notification, force treating insert/delete as a change.
                sorterChanged = true;
            }
        }
        else {
            sorterChanged = true;
        }

        sortManager.processChange(sortedEvent, change, sorterChanged);

        if (sorterChanged) {
            // Update the editing row
            if (this.editingRow != -1) {
                int newIndex = (editingModelIndex == -1) ? -1 :
                        convertRowIndexToView(editingModelIndex,change);
                restoreSortingEditingRow(newIndex);
            }

            // And handle the appropriate repainting.
            if (e == null || change.type != TableModelEvent.UPDATE) {
                resizeAndRepaint();
            }
        }

        // Check if lead/anchor need to be reset.
        if (change != null && change.allRowsChanged) {
            clearSelectionAndLeadAnchor();
            resizeAndRepaint();
        }
    
public voidsorterChanged(javax.swing.event.RowSorterEvent e)
RowSorterListener notification that the RowSorter has changed in some way.

param
e the RowSorterEvent describing the change
throws
NullPointerException if e is null
since
1.6

        if (e.getType() == RowSorterEvent.Type.SORT_ORDER_CHANGED) {
            JTableHeader header = getTableHeader();
            if (header != null) {
                header.repaint();
            }
        }
        else if (e.getType() == RowSorterEvent.Type.SORTED) {
            sorterChanged = true;
            if (!ignoreSortChange) {
                sortedTableChanged(e, null);
            }
        }
    
public voidtableChanged(javax.swing.event.TableModelEvent e)
Invoked when this table's TableModel generates a TableModelEvent. The TableModelEvent should be constructed in the coordinate system of the model; the appropriate mapping to the view coordinate system is performed by this JTable when it receives the event.

Application code will not use these methods explicitly, they are used internally by JTable.

Note that as of 1.3, this method clears the selection, if any.

        if (e == null || e.getFirstRow() == TableModelEvent.HEADER_ROW) {
            // The whole thing changed
            clearSelectionAndLeadAnchor();

            rowModel = null;

            if (sortManager != null) {
                try {
                    ignoreSortChange = true;
                    sortManager.sorter.modelStructureChanged();
                } finally {
                    ignoreSortChange = false;
                }
                sortManager.allChanged();
            }

            if (getAutoCreateColumnsFromModel()) {
		// This will effect invalidation of the JTable and JTableHeader.
                createDefaultColumnsFromModel();
		return;
	    }

	    resizeAndRepaint();
            return;
        }

        if (sortManager != null) {
            sortedTableChanged(null, e);
            return;
        }

	// The totalRowHeight calculated below will be incorrect if
	// there are variable height rows. Repaint the visible region,
	// but don't return as a revalidate may be necessary as well.
	if (rowModel != null) {
	    repaint();
	}

        if (e.getType() == TableModelEvent.INSERT) {
            tableRowsInserted(e);
            return;
        }

        if (e.getType() == TableModelEvent.DELETE) {
            tableRowsDeleted(e);
            return;
        }

        int modelColumn = e.getColumn();
        int start = e.getFirstRow();
        int end = e.getLastRow();

        Rectangle dirtyRegion;
        if (modelColumn == TableModelEvent.ALL_COLUMNS) {
            // 1 or more rows changed
            dirtyRegion = new Rectangle(0, start * getRowHeight(),
                                        getColumnModel().getTotalColumnWidth(), 0);
        }
        else {
            // A cell or column of cells has changed.
            // Unlike the rest of the methods in the JTable, the TableModelEvent
            // uses the coordinate system of the model instead of the view.
            // This is the only place in the JTable where this "reverse mapping"
            // is used.
            int column = convertColumnIndexToView(modelColumn);
            dirtyRegion = getCellRect(start, column, false);
        }

        // Now adjust the height of the dirty region according to the value of "end".
        // Check for Integer.MAX_VALUE as this will cause an overflow.
        if (end != Integer.MAX_VALUE) {
	    dirtyRegion.height = (end-start+1)*getRowHeight();
            repaint(dirtyRegion.x, dirtyRegion.y, dirtyRegion.width, dirtyRegion.height);
        }
        // In fact, if the end is Integer.MAX_VALUE we need to revalidate anyway
        // because the scrollbar may need repainting.
        else {
            clearSelectionAndLeadAnchor();
            resizeAndRepaint();
            rowModel = null;
        }
    
private voidtableRowsDeleted(javax.swing.event.TableModelEvent e)

        int start = e.getFirstRow();
        int end = e.getLastRow();
        if (start < 0) {
            start = 0;
	}
	if (end < 0) {
	    end = getRowCount()-1;
	}

        int deletedCount = end - start + 1;
        int previousRowCount = getRowCount() + deletedCount;
        // Adjust the selection to account for the new rows
	selectionModel.removeIndexInterval(start, end);

	// If we have variable height rows, adjust the row model.
	if (rowModel != null) {
	    rowModel.removeEntries(start, deletedCount);
	}

        int rh = getRowHeight();
        Rectangle drawRect = new Rectangle(0, start * rh,
                                        getColumnModel().getTotalColumnWidth(),
                                        (previousRowCount - start) * rh);

        revalidate();
        // PENDING(milne) revalidate calls repaint() if parent is a ScrollPane
	// repaint still required in the unusual case where there is no ScrollPane
        repaint(drawRect);
    
private voidtableRowsInserted(javax.swing.event.TableModelEvent e)

        int start = e.getFirstRow();
        int end = e.getLastRow();
        if (start < 0) {
            start = 0;
	}
	if (end < 0) {
	    end = getRowCount()-1;
	}

        // Adjust the selection to account for the new rows.
	int length = end - start + 1;
	selectionModel.insertIndexInterval(start, length, true);

	// If we have variable height rows, adjust the row model.
	if (rowModel != null) {
	    rowModel.insertEntries(start, length, getRowHeight());
	}
        int rh = getRowHeight() ;
        Rectangle drawRect = new Rectangle(0, start * rh,
                                        getColumnModel().getTotalColumnWidth(),
                                           (getRowCount()-start) * rh);

        revalidate();
        // PENDING(milne) revalidate calls repaint() if parent is a ScrollPane
	// repaint still required in the unusual case where there is no ScrollPane
        repaint(drawRect);
    
private inttrailingEdge(java.awt.Rectangle rect, int orientation)

        if (orientation == SwingConstants.VERTICAL) {
            return rect.y + rect.height;
        }
        else if (getComponentOrientation().isLeftToRight()) {
            return rect.x + rect.width;
        }
        else { // Horizontal, right-to-left
            return rect.x;
        }
    
protected voidunconfigureEnclosingScrollPane()
Reverses the effect of configureEnclosingScrollPane by replacing the columnHeaderView of the enclosing scroll pane with null. JTable's removeNotify method calls this method, which is protected so that this default uninstallation procedure can be overridden by a subclass.

see
#removeNotify
see
#configureEnclosingScrollPane
since
1.3

        Container p = getParent();
        if (p instanceof JViewport) {
            Container gp = p.getParent();
            if (gp instanceof JScrollPane) {
                JScrollPane scrollPane = (JScrollPane)gp;
                // Make certain we are the viewPort's view and not, for
                // example, the rowHeaderView of the scrollPane -
                // an implementor of fixed columns might do this.
                JViewport viewport = scrollPane.getViewport();
                if (viewport == null || viewport.getView() != this) {
                    return;
                }
                scrollPane.setColumnHeaderView(null);
            }
        }
    
private voidupdateSubComponentUI(java.lang.Object componentShell)

        if (componentShell == null) {
            return;
        }
        Component component = null;
        if (componentShell instanceof Component) {
            component = (Component)componentShell;
        }
        if (componentShell instanceof DefaultCellEditor) {
            component = ((DefaultCellEditor)componentShell).getComponent();
        }

        if (component != null) {
            SwingUtilities.updateComponentTreeUI(component);
        }
    
public voidupdateUI()
Notification from the UIManager that the L&F has changed. Replaces the current UI object with the latest version from the UIManager.

see
JComponent#updateUI

        // Update the UIs of the cell renderers, cell editors and header renderers.
        TableColumnModel cm = getColumnModel();
        for(int column = 0; column < cm.getColumnCount(); column++) {
            TableColumn aColumn = cm.getColumn(column);
	    updateSubComponentUI(aColumn.getCellRenderer());
            updateSubComponentUI(aColumn.getCellEditor());
	    updateSubComponentUI(aColumn.getHeaderRenderer());
        }

        // Update the UIs of all the default renderers.
        Enumeration defaultRenderers = defaultRenderersByColumnClass.elements();
        while (defaultRenderers.hasMoreElements()) {
            updateSubComponentUI(defaultRenderers.nextElement());
        }

        // Update the UIs of all the default editors.
        Enumeration defaultEditors = defaultEditorsByColumnClass.elements();
        while (defaultEditors.hasMoreElements()) {
            updateSubComponentUI(defaultEditors.nextElement());
        }

        // Update the UI of the table header
        if (tableHeader != null && tableHeader.getParent() == null) {
            tableHeader.updateUI();
        }
        
        setUI((TableUI)UIManager.getUI(this));
    
public voidvalueChanged(javax.swing.event.ListSelectionEvent e)
Invoked when the row selection changes -- repaints to show the new selection.

Application code will not use these methods explicitly, they are used internally by JTable.

param
e the event received
see
ListSelectionListener

        if (sortManager != null) {
            sortManager.viewSelectionChanged(e);
        }
        boolean isAdjusting = e.getValueIsAdjusting();
        if (rowSelectionAdjusting && !isAdjusting) {
            // The assumption is that when the model is no longer adjusting
            // we will have already gotten all the changes, and therefore
            // don't need to do an additional paint.
            rowSelectionAdjusting = false;
            return;
        }
        rowSelectionAdjusting = isAdjusting;
	// The getCellRect() calls will fail unless there is at least one column.
	if (getRowCount() <= 0 || getColumnCount() <= 0) {
	    return;
	}
        int firstIndex = limit(e.getFirstIndex(), 0, getRowCount()-1);
        int lastIndex = limit(e.getLastIndex(), 0, getRowCount()-1);
        Rectangle firstRowRect = getCellRect(firstIndex, 0, false);
        Rectangle lastRowRect = getCellRect(lastIndex, getColumnCount()-1, false);
        Rectangle dirtyRegion = firstRowRect.union(lastRowRect);
        repaint(dirtyRegion);
    
private intviewIndexForColumn(javax.swing.table.TableColumn aColumn)

	TableColumnModel cm = getColumnModel();
	for (int column = 0; column < cm.getColumnCount(); column++) {
	    if (cm.getColumn(column) == aColumn) {
		return column;
	    }
	}
	return -1;
    
private voidwriteObject(java.io.ObjectOutputStream s)
See readObject() and writeObject() in JComponent for more information about serialization in Swing.

        s.defaultWriteObject();
        if (getUIClassID().equals(uiClassID)) {
            byte count = JComponent.getWriteObjCounter(this);
            JComponent.setWriteObjCounter(this, --count);
            if (count == 0 && ui != null) {
                ui.installUI(this);
            }
        }