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/*

* Copyright (c) 1996, 1997, Oracle and/or its affiliates. All rights reserved.

* ORACLE PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

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package java.beans;

/**

* A VetoableChange event gets fired whenever a bean changes a "constrained"

* property. You can register a VetoableChangeListener with a source bean

* so as to be notified of any constrained property updates.

*/

public interface VetoableChangeListener extends java.util.EventListener {

/**

* This method gets called when a constrained property is changed.

*

* @param evt a <code>PropertyChangeEvent</code> object describing the

* event source and the property that has changed.

* @exception PropertyVetoException if the recipient wishes the property

* change to be rolled back.

*/

void vetoableChange(PropertyChangeEvent evt)

throws PropertyVetoException;

}