001    /* ===========================================================
002     * JFreeChart : a free chart library for the Java(tm) platform
003     * ===========================================================
004     *
005     * (C) Copyright 2000-2008, by Object Refinery Limited and Contributors.
006     *
007     * Project Info:  http://www.jfree.org/jfreechart/index.html
008     *
009     * This library is free software; you can redistribute it and/or modify it
010     * under the terms of the GNU Lesser General Public License as published by
011     * the Free Software Foundation; either version 2.1 of the License, or
012     * (at your option) any later version.
013     *
014     * This library is distributed in the hope that it will be useful, but
015     * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
016     * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public
017     * License for more details.
018     *
019     * You should have received a copy of the GNU Lesser General Public
020     * License along with this library; if not, write to the Free Software
021     * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301,
022     * USA.
023     *
024     * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
025     * in the United States and other countries.]
026     *
027     * -----------------------
028     * PlotChangeListener.java
029     * -----------------------
030     * (C) Copyright 2000-2008, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * Changes (from 24-Aug-2001)
036     * --------------------------
037     * 24-Aug-2001 : Added standard source header. Fixed DOS encoding problem (DG);
038     * 07-Nov-2001 : Updated header (DG);
039     * 09-Oct-2002 : Fixed errors reported by Checkstyle (DG);
040     * 14-Oct-2002 : Now extends EventListener (DG);
041     *
042     */
043    
044    package org.jfree.chart.event;
045    
046    import java.util.EventListener;
047    
048    /**
049     * The interface that must be supported by classes that wish to receive
050     * notification of changes to a plot.
051     *
052     */
053    public interface PlotChangeListener extends EventListener {
054    
055        /**
056         * Receives notification of a plot change event.
057         *
058         * @param event  the event.
059         */
060        public void plotChanged(PlotChangeEvent event);
061    
062    }