1 /* ===========================================================
2 * JFreeChart : a free chart library for the Java(tm) platform
3 * ===========================================================
4 *
5 * (C) Copyright 2000-2007, 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
20 * License along with this library; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
22 * USA.
23 *
24 * [Java is a trademark or registered trademark of Sun Microsystems, Inc.
25 * in the United States and other countries.]
26 *
27 * --------------------
28 * CategoryDataset.java
29 * --------------------
30 * (C) Copyright 2000-2007, by Object Refinery Limited.
31 *
32 * Original Author: David Gilbert (for Object Refinery Limited);
33 * Contributor(s): -;
34 *
35 * Changes (from 21-Aug-2001)
36 * --------------------------
37 * 21-Aug-2001 : Added standard header. Fixed DOS encoding problem (DG);
38 * 18-Sep-2001 : Updated e-mail address in header (DG);
39 * 15-Oct-2001 : Moved to new package (com.jrefinery.data.*) (DG);
40 * 22-Oct-2001 : Renamed DataSource.java --> Dataset.java etc. (DG);
41 * 17-Nov-2001 : Updated Javadoc comments (DG);
42 * 04-Mar-2002 : Updated import statement (DG);
43 * 23-Oct-2002 : Reorganised code (DG);
44 * 10-Jan-2003 : Updated Javadocs (DG);
45 * 21-Jan-2003 : Merged with TableDataset (which only existed in CVS) (DG);
46 * 13-Mar-2003 : Added KeyedValues2DDataset interface (DG);
47 * 23-Apr-2003 : Switched CategoryDataset and KeyedValues2DDataset so that
48 * CategoryDataset is the super interface (DG);
49 * 18-Aug-2004 : Moved from org.jfree.data --> org.jfree.data.category (DG);
50 *
51 */
52
53 package org.jfree.data.category;
54
55 import org.jfree.data.KeyedValues2D;
56 import org.jfree.data.general.Dataset;
57
58 /**
59 * The interface for a dataset with one or more series, and values associated
60 * with categories.
61 * <P>
62 * The categories are represented by <code>Comparable</code> instance, with the
63 * category label being provided by the <code>toString</code> method.
64 */
65 public interface CategoryDataset extends KeyedValues2D, Dataset {
66
67 // no additional methods required
68
69 }
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