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 * CombinationDataset.java 24 * ----------------------- 25 * (C) Copyright 2001-2003, by Bill Kelemen. 26 * 27 * Original Author: Bill Kelemen; 28 * Contributor(s): -; 29 * 30 * $Id: CombinationDataset.java,v 1.3 2003/06/13 15:46:39 mungady Exp $ 31 * 32 * Changes 33 * ------- 34 * 06-Dec-2001 : Version 1 (BK); 35 * 36 */ 37 38 package org.jfree.data; 39 40 /** 41 * Interface that describes the new methods that any combined dataset needs to 42 * implement. A combined dataset object will combine one or more datasets and 43 * expose a sub-set or union of the combined datasets. 44 * 45 * @author Bill Kelemenm (bill@kelemen-usa.com) 46 */ 47 public interface CombinationDataset { 48 49 /////////////////////////////////////////////////////////////////////////// 50 // New methods from CombinationDataset 51 /////////////////////////////////////////////////////////////////////////// 52 53 /** 54 * Returns the parent Dataset of this combination. If there is more than 55 * one parent, or a child is found that is not a combination, then returns 56 * <code>null</code>. 57 * 58 * @return the parent Dataset of this combination. 59 */ 60 public SeriesDataset getParent(); 61 62 /** 63 * Returns a map or indirect indexing form our series into parent's series. 64 * 65 * @return a map or indirect indexing form our series into parent's series. 66 */ 67 public int[] getMap(); 68 69 } 70