java.beans

Class VetoableChangeListenerProxy

java.lang.Object

java.util.EventListenerProxy<VetoableChangeListener>

java.beans.VetoableChangeListenerProxy

All Implemented Interfaces:

VetoableChangeListener, EventListener

public class VetoableChangeListenerProxy
extends EventListenerProxy<VetoableChangeListener>
implements VetoableChangeListener

A class which extends the EventListenerProxy specifically for adding a VetoableChangeListener with a "constrained" property. Instances of this class can be added as VetoableChangeListeners to a bean which supports firing vetoable change 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, VetoableChangeSupport.getVetoableChangeListeners()

Constructor Summary

Constructors

Constructor and Description
VetoableChangeListenerProxy(String propertyName, VetoableChangeListener listener) Constructor which binds the VetoableChangeListener to a specific property.

Method Summary

Modifier and Type	Method and Description
String	getPropertyName() Returns the name of the named property associated with the listener.
void	vetoableChange(PropertyChangeEvent event) 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)

Constructor which binds the VetoableChangeListener to a specific property.

Parameters:

propertyName - the name of the property to listen on

listener - the listener object

Method Detail

vetoableChange

public void vetoableChange(PropertyChangeEvent event)
                    throws PropertyVetoException

Forwards the property change event to the listener delegate.

Specified by:

vetoableChange in interface VetoableChangeListener

Parameters:

event - 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.

Returns:

the name of the named property associated with the listener