1. /*

  2.  * @(#)PropertyChangeListener.java	1.17 03/12/19

  3.  *

  4.  * Copyright 2004 Sun Microsystems, Inc. All rights reserved.

  5.  * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.

  6.  */

  7. 

  8. package java.beans;

  9. 

  10. /**

  11.  * A "PropertyChange" event gets fired whenever a bean changes a "bound"

  12.  * property.  You can register a PropertyChangeListener with a source

  13.  * bean so as to be notified of any bound property updates.

  14.  */

  15. 

  16. public interface PropertyChangeListener extends java.util.EventListener {

  17. 

  18.     /**

  19.      * This method gets called when a bound property is changed.

  20.      * @param evt A PropertyChangeEvent object describing the event source 

  21.      *   	and the property that has changed.

  22.      */

  23. 

  24.     void propertyChange(PropertyChangeEvent evt);

  25. 

  26. }