File	Doc	Category	Size	Date	Package
FilterExprIterator.java	API Doc	Java SE 6 API	5577	Tue Jun 10 00:23:14 BST 2008	com.sun.org.apache.xpath.internal.axes

FilterExprIterator

• java.lang.Object
  • com.sun.org.apache.xpath.internal.Expression
    • com.sun.org.apache.xpath.internal.patterns.NodeTest
      • com.sun.org.apache.xpath.internal.axes.PredicatedNodeTest
        • com.sun.org.apache.xpath.internal.axes.LocPathIterator
          • com.sun.org.apache.xpath.internal.axes.BasicTestIterator

Fields Summary
static final long	serialVersionUID
private Expression	m_expr The contained expression. Should be non-null.
private transient XNodeSet	m_exprObj The result of executing m_expr. Needs to be deep cloned on clone op.
private boolean	m_mustHardReset
private boolean	m_canDetachNodeset

Constructors Summary
public FilterExprIterator() Create a FilterExprIterator object. super(null);
public FilterExprIterator(Expression expr) Create a FilterExprIterator object. super(null); m_expr = expr;

Methods Summary
public void	callPredicateVisitors(com.sun.org.apache.xpath.internal.XPathVisitor visitor) This will traverse the heararchy, calling the visitor for each member. If the called visitor method returns false, the subtree should not be called. param visitor The visitor whose appropriate method will be called. m_expr.callVisitors(new filterExprOwner(), visitor); super.callPredicateVisitors(visitor);
public boolean	deepEquals(com.sun.org.apache.xpath.internal.Expression expr) see Expression#deepEquals(Expression) if (!super.deepEquals(expr)) return false; FilterExprIterator fet = (FilterExprIterator) expr; if (!m_expr.deepEquals(fet.m_expr)) return false; return true;
public void	detach() Detaches the walker from the set which it iterated over, releasing any computational resources and placing the iterator in the INVALID state. super.detach(); m_exprObj.detach(); m_exprObj = null;
public void	fixupVariables(java.util.Vector vars, int globalsSize) This function is used to fixup variables from QNames to stack frame indexes at stylesheet build time. param vars List of QNames that correspond to variables. This list should be searched backwards for the first qualified name that corresponds to the variable reference qname. The position of the QName in the vector from the start of the vector will be its position in the stack frame (but variables above the globalsTop value will need to be offset to the current stack frame). super.fixupVariables(vars, globalsSize); m_expr.fixupVariables(vars, globalsSize);
public int	getAnalysisBits() Get the analysis bits for this walker, as defined in the WalkerFactory. return One of WalkerFactory#BIT_DESCENDANT, etc. if (null != m_expr && m_expr instanceof PathComponent) { return ((PathComponent) m_expr).getAnalysisBits(); } return WalkerFactory.BIT_FILTER;
public com.sun.org.apache.xpath.internal.Expression	getInnerExpression() Get the inner contained expression of this filter. return m_expr;
protected int	getNextNode() Get the next node via getNextXXX. Bottlenecked for derived class override. return The next node on the axis, or DTM.NULL. if (null != m_exprObj) { m_lastFetched = m_exprObj.nextNode(); } else m_lastFetched = DTM.NULL; return m_lastFetched;
public boolean	isDocOrdered() Returns true if all the nodes in the iteration well be returned in document order. Warning: This can only be called after setRoot has been called! return true as a default. return m_exprObj.isDocOrdered();
public void	setInnerExpression(com.sun.org.apache.xpath.internal.Expression expr) Set the inner contained expression of this filter. expr.exprSetParent(this); m_expr = expr;
public void	setRoot(int context, java.lang.Object environment) Initialize the context values for this expression after it is cloned. param context The XPath runtime context for this transformation. super.setRoot(context, environment); m_exprObj = FilterExprIteratorSimple.executeFilterExpr(context, m_execContext, getPrefixResolver(), getIsTopLevel(), m_stackFrame, m_expr);