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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: * MultiValueCategoryDataset.java 29: * ------------------------------ 30: * (C) Copyright 2007, by David Forslund and Contributors. 31: * 32: * Original Author: David Forslund; 33: * Contributor(s): David Gilbert (for Object Refinery Limited); 34: * 35: * Changes 36: * ------- 37: * 08-Oct-2007 : Version 1, see patch 1780779 (DG); 38: * 39: */ 40: 41: package org.jfree.data.statistics; 42: 43: import java.util.List; 44: 45: import org.jfree.data.category.CategoryDataset; 46: 47: /** 48: * A category dataset that defines multiple values for each item. 49: * 50: * @since 1.0.7 51: */ 52: public interface MultiValueCategoryDataset extends CategoryDataset { 53: 54: /** 55: * Returns a list (possibly empty) of the values for the specified item. 56: * The returned list should be unmodifiable. 57: * 58: * @param row the row index (zero-based). 59: * @param column the column index (zero-based). 60: * 61: * @return The list of values. 62: */ 63: public List getValues(int row, int column); 64: 65: /** 66: * Returns a list (possibly empty) of the values for the specified item. 67: * The returned list should be unmodifiable. 68: * 69: * @param rowKey the row key (<code>null</code> not permitted). 70: * @param columnKey the column key (<code>null</code> not permitted). 71: * 72: * @return The list of values. 73: */ 74: public List getValues(Comparable rowKey, Comparable columnKey); 75: 76: }