File	Doc	Category	Size	Date	Package
MappingElementImpl.java	API Doc	Glassfish v2 API	9195	Fri May 04 22:34:44 BST 2007	com.sun.jdo.api.persistence.model.mapping.impl

MappingElementImpl

• java.lang.Object

Fields Summary
private static final ResourceBundle	_messages I18N message handler
private PropertyChangeSupport	_support Property change support
private transient VetoableChangeSupport	_vetoableSupport Vetoable change support
String	_name

Constructors Summary
public MappingElementImpl() Create new MappingElementImpl with no corresponding name. This constructor should only be used for cloning and archiving. this(null);
public MappingElementImpl(String name) Creates new MappingElementImpl with the corresponding name param name the name of the element super(); _name = name;

Methods Summary
public synchronized void	addPropertyChangeListener(java.beans.PropertyChangeListener l) Add a property change listener. param l the listener to add if (_support == null) { synchronized(this) { // new test under synchronized block if (_support == null) _support = new PropertyChangeSupport(this); } } _support.addPropertyChangeListener(l);
public synchronized void	addVetoableChangeListener(java.beans.VetoableChangeListener l) Add a vetoable change listener. param l the listener to add if (_vetoableSupport == null) _vetoableSupport = new VetoableChangeSupport(this); _vetoableSupport.addVetoableChangeListener(l);
public int	compareTo(java.lang.Object o) Compares this object with the specified object for order. Returns a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. The specified object must be mapping element, meaning it must be an instance of class MappingElementImpl or any subclass. If not a ClassCastException is thrown. The order of MappingElementImpl objects is defined by the order of their names. Mapping elements without name are considered to be less than any named mapping element. param o the Object to be compared. return a negative integer, zero, or a positive integer as this object is less than, equal to, or greater than the specified object. exception ClassCastException - if the specified object is null or is not an instance of MappingElementImpl // null is not allowed if (o == null) throw new ClassCastException(); if (o == this) return 0; String thisName = getName(); // the following statement throws a ClassCastException if o is not a MappingElementImpl String otherName = ((MappingElementImpl)o).getName(); // if this does not have a name it should compare less than any named object if (thisName == null) return (otherName == null) ? 0 : -1; // if this is named and o does not have a name it should compare greater if (otherName == null) return 1; // now we know that this and o are named mapping elements => // use locale-sensitive String comparison int ret = Collator.getInstance().compare(thisName, otherName); // if both names are equal, both objects might have different types. // If so order both objects by their type names (necessary to be consistent with equals) if ((ret == 0) && (getClass() != o.getClass())) ret = getClass().getName().compareTo(o.getClass().getName()); return ret;
public boolean	equals(java.lang.Object obj) Overrides Object's equals method by comparing the name of this mapping element with the name of the argument obj. The method returns false if obj does not have the same dynamic type as this mapping element. return true if this object is the same as the obj argument; false otherwise. param obj the reference object with which to compare. if (obj == null) return false; if (obj == this) return true; // check for the right class and then do the name check by calling compareTo. return (getClass() == obj.getClass()) && (compareTo(obj) == 0);
protected void	firePropertyChange(java.lang.String name, java.lang.Object o, java.lang.Object n) Fires property change event. param name property name param o old value param n new value if (_support != null) _support.firePropertyChange(name, o, n);
protected void	fireVetoableChange(java.lang.String name, java.lang.Object o, java.lang.Object n) Fires vetoable change event. param name property name param o old value param n new value exception PropertyVetoException when the change is vetoed by a listener if (_vetoableSupport != null) _vetoableSupport.fireVetoableChange(name, o, n);
protected static final java.util.ResourceBundle	getMessages() return I18N message handler for this element return _messages;
public java.lang.String	getName() Get the name of this mapping element. return the name return _name;
public int	hashCode() Overrides Object's hashCode method to return the hashCode of this mapping element's name. return a hash code value for this object. return (getName()==null) ? 0 : getName().hashCode();
public void	removePropertyChangeListener(java.beans.PropertyChangeListener l) Remove a property change listener. param l the listener to remove if (_support != null) _support.removePropertyChangeListener(l);
public synchronized void	removeVetoableChangeListener(java.beans.VetoableChangeListener l) Remove a vetoable change listener. param l the listener to remove if (_vetoableSupport != null) _vetoableSupport.removeVetoableChangeListener(l);
public void	setName(java.lang.String name) Set the name of this mapping element. param name the name exception ModelException if impossible String old = getName(); try { fireVetoableChange(PROP_NAME, old, name); _name = name; firePropertyChange(PROP_NAME, old, name); } catch (PropertyVetoException e) { throw new ModelVetoException(e); }
public java.lang.String	toString() Overrides Object's toString method to return the name of this mapping element. return a string representation of the object return getName();