001/* ===========================================================
002 * JFreeChart : a free chart library for the Java(tm) platform
003 * ===========================================================
004 *
005 * (C) Copyright 2000-2013, 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 * [Oracle and Java are registered trademarks of Oracle and/or its affiliates. 
025 * Other names may be trademarks of their respective owners.]
026 *
027 * --------------------
028 * CategoryDataset.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 21-Aug-2001)
036 * --------------------------
037 * 21-Aug-2001 : Added standard header. Fixed DOS encoding problem (DG);
038 * 18-Sep-2001 : Updated e-mail address in header (DG);
039 * 15-Oct-2001 : Moved to new package (com.jrefinery.data.*) (DG);
040 * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG);
041 * 17-Nov-2001 : Updated Javadoc comments (DG);
042 * 04-Mar-2002 : Updated import statement (DG);
043 * 23-Oct-2002 : Reorganised code (DG);
044 * 10-Jan-2003 : Updated Javadocs (DG);
045 * 21-Jan-2003 : Merged with TableDataset (which only existed in CVS) (DG);
046 * 13-Mar-2003 : Added KeyedValues2DDataset interface (DG);
047 * 23-Apr-2003 : Switched CategoryDataset and KeyedValues2DDataset so that
048 *               CategoryDataset is the super interface (DG);
049 * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.category (DG);
050 *
051 */
052
053package org.jfree.data.category;
054
055import org.jfree.data.KeyedValues2D;
056import org.jfree.data.general.Dataset;
057
058/**
059 * The interface for a dataset with one or more series, and values associated
060 * with categories.
061 * <P>
062 * The categories are represented by <code>Comparable</code> instance, with the
063 * category label being provided by the <code>toString</code> method.
064 */
065public interface CategoryDataset extends KeyedValues2D, Dataset {
066
067    // no additional methods required
068
069}