001/* PropertyChangeListener.java -- listen for changes in a bound property
002   Copyright (C) 1998, 2000, 2002 Free Software Foundation, Inc.
003
004This file is part of GNU Classpath.
005
006GNU Classpath is free software; you can redistribute it and/or modify
007it under the terms of the GNU General Public License as published by
008the Free Software Foundation; either version 2, or (at your option)
009any later version.
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013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
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017along with GNU Classpath; see the file COPYING.  If not, write to the
018Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
01902110-1301 USA.
020
021Linking this library statically or dynamically with other modules is
022making a combined work based on this library.  Thus, the terms and
023conditions of the GNU General Public License cover the whole
024combination.
025
026As a special exception, the copyright holders of this library give you
027permission to link this library with independent modules to produce an
028executable, regardless of the license terms of these independent
029modules, and to copy and distribute the resulting executable under
030terms of your choice, provided that you also meet, for each linked
031independent module, the terms and conditions of the license of that
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036exception statement from your version. */
037
038
039package java.beans;
040
041import java.util.EventListener;
042
043/**
044 * PropertyChangeListener allows a class to monitor properties of a Bean for
045 * changes. A propertyChange() event will only be fired <em>after</em> the
046 * property has changed.
047 *
048 * @author John Keiser
049 * @see PropertyChangeSupport
050 * @since 1.1
051 * @status updated to 1.4
052 */
053public interface PropertyChangeListener extends EventListener
054{
055  /**
056   * Fired after a Bean's property has changed.
057   *
058   * @param e the change (containing the old and new values)
059   */
060  void propertyChange(PropertyChangeEvent e);
061} // interface PropertyChangeListener