/* ===========================================================

 * JFreeChart : a free chart library for the Java(tm) platform

 * ===========================================================

 *

 * (C) Copyright 2000-2004, by Object Refinery Limited and Contributors.

 *

 * Project Info:  http://www.jfree.org/jfreechart/index.html

 *

 * This library is free software; you can redistribute it and/or modify it under the terms

 * of the GNU Lesser General Public License as published by the Free Software Foundation;

 * either version 2.1 of the License, or (at your option) any later version.

 *

 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;

 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

 * See the GNU Lesser General Public License for more details.

 *

 * You should have received a copy of the GNU Lesser General Public License along with this

 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,

 * Boston, MA 02111-1307, USA.

 *

 * [Java is a trademark or registered trademark of Sun Microsystems, Inc. 

 * in the United States and other countries.]

 *

 * --------------------

 * CategoryDataset.java

 * --------------------

 * (C) Copyright 2000-2004, by Object Refinery Limited.

 *

 * Original Author:  David Gilbert (for Object Refinery Limited);

 * Contributor(s):   -;

 *

 * $Id: CategoryDataset.java,v 1.1 2004/08/31 15:23:11 mungady Exp $

 *

 * Changes (from 21-Aug-2001)

 * --------------------------

 * 21-Aug-2001 : Added standard header. Fixed DOS encoding problem (DG);

 * 18-Sep-2001 : Updated e-mail address in header (DG);

 * 15-Oct-2001 : Moved to new package (com.jrefinery.data.*) (DG);

 * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG);

 * 17-Nov-2001 : Updated Javadoc comments (DG);

 * 04-Mar-2002 : Updated import statement (DG);

 * 23-Oct-2002 : Reorganised code (DG);

 * 10-Jan-2003 : Updated Javadocs (DG);

 * 21-Jan-2003 : Merged with TableDataset (which only existed in CVS) (DG);

 * 13-Mar-2003 : Added KeyedValues2DDataset interface (DG);

 * 23-Apr-2003 : Switched CategoryDataset and KeyedValues2DDataset so that CategoryDataset is

 *               the super interface (DG);

 * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.category (DG);

 *

 */



package org.jfree.data.category;



import org.jfree.data.KeyedValues2D;

import org.jfree.data.general.Dataset;



/**

 * The interface for a dataset with one or more series, and values associated with categories.

 * <P>

 * The categories are represented by <code>Comparable</code> instance, with the category label

 * being provided by the <code>toString</code> method.

 */

public interface CategoryDataset extends KeyedValues2D, Dataset {



    // no additional methods required



}

