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/*

* 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;

}

}