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JavaTM 2 Platform Std. Ed. v1.6.0

java.beans
Class VetoableChangeListenerProxy

java.lang.Object
  extended by java.util.EventListenerProxy
      extended by java.beans.VetoableChangeListenerProxy
All Implemented Interfaces:
VetoableChangeListener, EventListener

public class VetoableChangeListenerProxy
extends EventListenerProxy
implements VetoableChangeListener

A class which extends the EventListenerProxy specifically for associating a VetoableChangeListener with a "constrained" property. Instances of this class can be added as a VetoableChangeListener to a bean which supports firing VetoableChange events.

If the object has a getVetoableChangeListeners() method then the array returned could be a mixture of VetoableChangeListener and VetoableChangeListenerProxy objects.

Since:
1.4
See Also:
EventListenerProxy, VetoableChangeListener, VetoableChangeSupport.getVetoableChangeListeners()

Constructor Summary
VetoableChangeListenerProxy(String propertyName, VetoableChangeListener listener)
           
 
Method Summary
 String getPropertyName()
          Returns the name of the named property associated with the listener.
 void vetoableChange(PropertyChangeEvent evt)
          Forwards the property change event to the listener delegate.
 
Methods inherited from class java.util.EventListenerProxy
getListener
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

VetoableChangeListenerProxy

public VetoableChangeListenerProxy(String propertyName,
                                   VetoableChangeListener listener)
Parameters:
propertyName - The name of the property to listen on.
listener - The listener object
Method Detail

vetoableChange

public void vetoableChange(PropertyChangeEvent evt)
                    throws PropertyVetoException
Forwards the property change event to the listener delegate.

Specified by:
vetoableChange in interface VetoableChangeListener
Parameters:
evt - the property change event
Throws:
PropertyVetoException - if the recipient wishes the property change to be rolled back.

getPropertyName

public String getPropertyName()
Returns the name of the named property associated with the listener.


Copyright 2003 Sun Microsystems, Inc. All rights reserved