1. /* ===========================================================

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

  3.  * ===========================================================

  4.  *

  5.  * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.

  6.  *

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

  8.  *

  9.  * This library is free software; you can redistribute it and/or modify it 

  10.  * under the terms of the GNU Lesser General Public License as published by 

  11.  * the Free Software Foundation; either version 2.1 of the License, or 

  12.  * (at your option) any later version.

  13.  *

  14.  * This library is distributed in the hope that it will be useful, but 

  15.  * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY 

  16.  * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public 

  17.  * License for more details.

  18.  *

  19.  * You should have received a copy of the GNU Lesser General Public License 

  20.  * along with this library; if not, write to the Free Software Foundation, 

  21.  * Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.

  22.  *

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

  24.  * in the United States and other countries.]

  25.  *

  26.  * --------------------

  27.  * CategoryDataset.java

  28.  * --------------------

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

  30.  *

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

  32.  * Contributor(s):   -;

  33.  *

  34.  * $Id: CategoryDataset.java,v 1.2 2005/03/04 11:50:41 mungady Exp $

  35.  *

  36.  * Changes (from 21-Aug-2001)

  37.  * --------------------------

  38.  * 21-Aug-2001 : Added standard header. Fixed DOS encoding problem (DG);

  39.  * 18-Sep-2001 : Updated e-mail address in header (DG);

  40.  * 15-Oct-2001 : Moved to new package (com.jrefinery.data.*) (DG);

  41.  * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG);

  42.  * 17-Nov-2001 : Updated Javadoc comments (DG);

  43.  * 04-Mar-2002 : Updated import statement (DG);

  44.  * 23-Oct-2002 : Reorganised code (DG);

  45.  * 10-Jan-2003 : Updated Javadocs (DG);

  46.  * 21-Jan-2003 : Merged with TableDataset (which only existed in CVS) (DG);

  47.  * 13-Mar-2003 : Added KeyedValues2DDataset interface (DG);

  48.  * 23-Apr-2003 : Switched CategoryDataset and KeyedValues2DDataset so that 

  49.  *               CategoryDataset is the super interface (DG);

  50.  * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.category (DG);

  51.  *

  52.  */

  53. 

  54. package org.jfree.data.category;

  55. 

  56. import org.jfree.data.KeyedValues2D;

  57. import org.jfree.data.general.Dataset;

  58. 

  59. /**

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

  61.  * with categories.

  62.  * <P>

  63.  * The categories are represented by <code>Comparable</code> instance, with the

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

  65.  */

  66. public interface CategoryDataset extends KeyedValues2D, Dataset {

  67. 

  68.     // no additional methods required

  69. 

  70. }