001    /* ===========================================================
002     * JFreeChart : a free chart library for the Java(tm) platform
003     * ===========================================================
004     *
005     * (C) Copyright 2000-2005, 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     * SeriesChangeListener.java
029     * -------------------------
030     * (C) Copyright 2001-2004, by Object Refinery Limited.
031     *
032     * Original Author:  David Gilbert (for Object Refinery Limited);
033     * Contributor(s):   -;
034     *
035     * $Id: SeriesChangeListener.java,v 1.2.2.1 2005/10/25 21:32:29 mungady Exp $
036     *
037     * Changes
038     * -------
039     * 15-Nov-2001 : Version 1 (DG);
040     * 26-Jun-2003 : Now extends EventListener so we can use the EventListenerList 
041     *               mechanism (DG);
042     *
043     */
044    
045    package org.jfree.data.general;
046    
047    import java.util.EventListener;
048    
049    /**
050     * Methods for receiving notification of changes to a data series.
051     */
052    public interface SeriesChangeListener extends EventListener {
053    
054        /**
055         * Called when an observed series changes in some way.
056         *
057         * @param event  information about the change.
058         */
059        public void seriesChanged(SeriesChangeEvent event);
060    
061    }