01: /* ===========================================================
02: * JFreeChart : a free chart library for the Java(tm) platform
03: * ===========================================================
04: *
05: * (C) Copyright 2000-2005, by Object Refinery Limited and Contributors.
06: *
07: * Project Info: http://www.jfree.org/jfreechart/index.html
08: *
09: * 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: * PieDataset.java
29: * ---------------
30: * (C) Copyright 2001-2004, by Object Refinery Limited.
31: *
32: * Original Author: David Gilbert (for Object Refinery Limited);
33: * Contributor(s): Sam (oldman);
34: *
35: * $Id: PieDataset.java,v 1.2.2.1 2005/10/25 21:32:29 mungady Exp $
36: *
37: * Changes
38: * -------
39: * 17-Nov-2001 : Version 1 (DG);
40: * 22-Jan-2002 : Removed the getCategoryCount() method, updated Javadoc
41: * comments (DG);
42: * 18-Apr-2002 : getCategories() now returns List instead of Set (oldman);
43: * 23-Oct-2002 : Reorganised the code: PieDataset now extends KeyedValues
44: * interface (DG);
45: * 04-Mar-2003 : Now just replicates the KeyedValuesDataset interface (DG);
46: *
47: */
48:
49: package org.jfree.data.general;
50:
51: import org.jfree.data.KeyedValues;
52:
53: /**
54: * A general purpose dataset where values are associated with keys. As the
55: * name suggests, you can use this dataset to supply data for pie charts (refer
56: * to the {@link org.jfree.chart.plot.PiePlot} class).
57: */
58: public interface PieDataset extends KeyedValues, Dataset {
59:
60: // no new methods added.
61:
62: }
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