Source for org.jfree.data.Values2D

   1: /* ===========================================================
   2:  * JFreeChart : a free chart library for the Java(tm) platform
   3:  * ===========================================================
   4:  *
   5:  * (C) Copyright 2000-2005, 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 2002-2005, by Object Refinery Limited.
  31:  *
  32:  * Original Author:  David Gilbert (for Object Refinery Limited);
  33:  * Contributor(s):   -;
  34:  *
  35:  * $Id: Values2D.java,v 1.3.2.1 2005/10/25 21:29:13 mungady Exp $
  36:  *
  37:  * Changes:
  38:  * --------
  39:  * 28-Oct-2002 : Version 1 (DG);
  40:  *
  41:  */
  42: 
  43: package org.jfree.data;
  44: 
  45: /**
  46:  * A general purpose interface that can be used to access a table of values.
  47:  */
  48: public interface Values2D {
  49: 
  50:     /**
  51:      * Returns the number of rows in the table.
  52:      *
  53:      * @return The row count.
  54:      */
  55:     public int getRowCount();
  56: 
  57:     /**
  58:      * Returns the number of columns in the table.
  59:      *
  60:      * @return The column count.
  61:      */
  62:     public int getColumnCount();
  63: 
  64:     /**
  65:      * Returns a value from the table.
  66:      *
  67:      * @param row  the row index (zero-based).
  68:      * @param column  the column index (zero-based).
  69:      *
  70:      * @return The value (possibly <code>null</code>).
  71:      * 
  72:      * @throws IndexOutOfBoundsException if the <code>row</code> 
  73:      *         or <code>column</code> is out of bounds.
  74:      */
  75:     public Number getValue(int row, int column);
  76: 
  77: }