/*
* Copyright (c) 2000, Oracle and/or its affiliates. All rights reserved.
* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
*
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package java.beans;
import java.util.
EventListenerProxy;
/**
* A class which extends the {@code EventListenerProxy}
* specifically for adding a {@code VetoableChangeListener}
* with a "constrained" property.
* Instances of this class can be added
* as {@code VetoableChangeListener}s to a bean
* which supports firing vetoable change events.
* <p>
* If the object has a {@code getVetoableChangeListeners} method
* then the array returned could be a mixture of {@code VetoableChangeListener}
* and {@code VetoableChangeListenerProxy} objects.
*
* @see java.util.EventListenerProxy
* @see VetoableChangeSupport#getVetoableChangeListeners
* @since 1.4
*/
public class
VetoableChangeListenerProxy
extends
EventListenerProxy<
VetoableChangeListener>
implements
VetoableChangeListener {
private final
String propertyName;
/**
* Constructor which binds the {@code VetoableChangeListener}
* to a specific property.
*
* @param propertyName the name of the property to listen on
* @param listener the listener object
*/
public
VetoableChangeListenerProxy(
String propertyName,
VetoableChangeListener listener) {
super(
listener);
this.
propertyName =
propertyName;
}
/**
* Forwards the property change event to the listener delegate.
*
* @param event the property change event
*
* @exception PropertyVetoException if the recipient wishes the property
* change to be rolled back
*/
public void
vetoableChange(
PropertyChangeEvent event) throws
PropertyVetoException{
getListener().
vetoableChange(
event);
}
/**
* Returns the name of the named property associated with the listener.
*
* @return the name of the named property associated with the listener
*/
public
String getPropertyName() {
return this.
propertyName;
}
}