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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: * Values2D.java 29: * ------------- 30: * (C) Copyright 2002-2007, by Object Refinery Limited. 31: * 32: * Original Author: David Gilbert (for Object Refinery Limited); 33: * Contributor(s): -; 34: * 35: * Changes: 36: * -------- 37: * 28-Oct-2002 : Version 1 (DG); 38: * 39: */ 40: 41: package org.jfree.data; 42: 43: /** 44: * A general purpose interface that can be used to access a table of values. 45: */ 46: public interface Values2D { 47: 48: /** 49: * Returns the number of rows in the table. 50: * 51: * @return The row count. 52: */ 53: public int getRowCount(); 54: 55: /** 56: * Returns the number of columns in the table. 57: * 58: * @return The column count. 59: */ 60: public int getColumnCount(); 61: 62: /** 63: * Returns a value from the table. 64: * 65: * @param row the row index (zero-based). 66: * @param column the column index (zero-based). 67: * 68: * @return The value (possibly <code>null</code>). 69: * 70: * @throws IndexOutOfBoundsException if the <code>row</code> 71: * or <code>column</code> is out of bounds. 72: */ 73: public Number getValue(int row, int column); 74: 75: }