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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: }