1 /* ====================================== 2 * JFreeChart : a free Java chart library 3 * ====================================== 4 * 5 * Project Info: http://www.jfree.org/jfreechart/index.html 6 * Project Lead: David Gilbert (david.gilbert@object-refinery.com); 7 * 8 * (C) Copyright 2000-2003, by Object Refinery Limited and Contributors. 9 * 10 * This library is free software; you can redistribute it and/or modify it under the terms 11 * of the GNU Lesser General Public License as published by the Free Software Foundation; 12 * either version 2.1 of the License, or (at your option) any later version. 13 * 14 * This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; 15 * without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 16 * See the GNU Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public License along with this 19 * library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, 20 * Boston, MA 02111-1307, USA. 21 * 22 * --------------- 23 * PieDataset.java 24 * --------------- 25 * (C) Copyright 2001-2003, by Object Refinery Limited. 26 * 27 * Original Author: David Gilbert (for Object Refinery Limited); 28 * Contributor(s): Sam (oldman); 29 * 30 * $Id: PieDataset.java,v 1.4 2003/06/13 15:46:44 mungady Exp $ 31 * 32 * Changes 33 * ------- 34 * 17-Nov-2001 : Version 1 (DG); 35 * 22-Jan-2002 : Removed the getCategoryCount() method, updated Javadoc comments (DG); 36 * 18-Apr-2002 : getCategories() now returns List instead of Set (oldman); 37 * 23-Oct-2002 : Reorganised the code: PieDataset now extends KeyedValues interface (DG); 38 * 04-Mar-2003 : Now just replicates the KeyedValuesDataset interface (DG); 39 * 40 */ 41 42 package org.jfree.data; 43 44 /** 45 * A general purpose dataset where values are associated with keys. 46 * <p> 47 * As the name suggests, you can use this dataset to supply data for pie charts. 48 * 49 * @author David Gilbert 50 */ 51 public interface PieDataset extends KeyedValues, Dataset { 52 53 // no new methods added. 54 55 } 56