1. /*

  2.  * @(#)PreferenceChangeListener.java	1.4 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.util.prefs;

  9. 

  10. /**

  11.  * A listener for receiving preference change events.

  12.  *

  13.  * @author  Josh Bloch

  14.  * @version 1.4, 12/19/03

  15.  * @see Preferences

  16.  * @see PreferenceChangeEvent

  17.  * @see NodeChangeListener

  18.  * @since   1.4

  19.  */

  20. public interface PreferenceChangeListener extends java.util.EventListener {

  21.     /**

  22.      * This method gets called when a preference is added, removed or when

  23.      * its value is changed.

  24.      * <p>

  25.      * @param evt A PreferenceChangeEvent object describing the event source 

  26.      *   	and the preference that has changed.

  27.      */

  28.     void preferenceChange(PreferenceChangeEvent evt);

  29. }