001/* ListDataListener.java --
002   Copyright (C) 2002, 2005 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.
010
011GNU Classpath is distributed in the hope that it will be useful, but
012WITHOUT ANY WARRANTY; without even the implied warranty of
013MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
014General Public License for more details.
015
016You should have received a copy of the GNU General Public License
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
032module.  An independent module is a module which is not derived from
033or based on this library.  If you modify this library, you may extend
034this exception to your version of the library, but you are not
035obligated to do so.  If you do not wish to do so, delete this
036exception statement from your version. */
037
038package javax.swing.event;
039
040import java.util.EventListener;
041
042import javax.swing.ListModel;
043
044/**
045 * A <code>ListDataListener</code> can register with a {@link ListModel} and
046 * receive notification of updates to the model.
047 *
048 * @author Andrew Selkirk
049 * @author Ronald Veldema
050 */
051public interface ListDataListener extends EventListener
052{
053
054  /**
055   * Notifies the listener that the contents of the list have changed
056   * in some way.  This method will be called if the change cannot be
057   * notified via the {@link #intervalAdded(ListDataEvent)} or the
058   * {@link #intervalRemoved(ListDataEvent)} methods.
059   *
060   * @param event  the event.
061   */
062  void contentsChanged(ListDataEvent event);
063
064  /**
065   * Notifies the listener that one or more items have been added to the
066   * list.  The <code>event</code> argument can supply the indices for the
067   * range of items added.
068   *
069   * @param event  the event.
070   */
071  void intervalAdded(ListDataEvent event);
072
073  /**
074   * Notifies the listener that one or more items have been removed from
075   * the list.  The <code>event</code> argument can supply the indices for
076   * the range of items removed.
077   *
078   * @param event  the event.
079   */
080  void intervalRemoved(ListDataEvent event);
081
082}