001 /* ContainerListener.java -- listen for container events
002 Copyright (C) 1999, 2002, 2005 Free Software Foundation, Inc.
003
004 This file is part of GNU Classpath.
005
006 GNU Classpath is free software; you can redistribute it and/or modify
007 it under the terms of the GNU General Public License as published by
008 the Free Software Foundation; either version 2, or (at your option)
009 any later version.
010
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012 WITHOUT ANY WARRANTY; without even the implied warranty of
013 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
014 General Public License for more details.
015
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017 along with GNU Classpath; see the file COPYING. If not, write to the
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019 02110-1301 USA.
020
021 Linking this library statically or dynamically with other modules is
022 making a combined work based on this library. Thus, the terms and
023 conditions of the GNU General Public License cover the whole
024 combination.
025
026 As a special exception, the copyright holders of this library give you
027 permission to link this library with independent modules to produce an
028 executable, regardless of the license terms of these independent
029 modules, and to copy and distribute the resulting executable under
030 terms of your choice, provided that you also meet, for each linked
031 independent module, the terms and conditions of the license of that
032 module. An independent module is a module which is not derived from
033 or based on this library. If you modify this library, you may extend
034 this exception to your version of the library, but you are not
035 obligated to do so. If you do not wish to do so, delete this
036 exception statement from your version. */
037
038
039 package java.awt.event;
040
041 import java.util.EventListener;
042
043 /**
044 * This interface is for classes that wish to listen for all events from
045 * container objects. This is normally not necessary since the AWT system
046 * listens for and processes these events. To watch a subset of these events,
047 * use a ContainerAdapter.
048 *
049 * @author Aaron M. Renn (arenn@urbanophile.com)
050 * @see ContainerAdapter
051 * @see ContainerEvent
052 * @since 1.1
053 * @status updated to 1.4
054 */
055 public interface ContainerListener extends EventListener
056 {
057 /**
058 * This method is called when a component is added to the container.
059 *
060 * @param event the <code>ContainerEvent</code> indicating component addition
061 */
062 void componentAdded(ContainerEvent event);
063
064 /**
065 * This method is called when a component is removed from the container.
066 *
067 * @param event the <code>ContainerEvent</code> indicating component removal
068 */
069 void componentRemoved(ContainerEvent event);
070 } // interface ContainerListener