API java : VetoableChangeListenerProxy

java.beans
Class VetoableChangeListenerProxy

java.lang.Object
  java.util.EventListenerProxy
      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

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.