Source for org.jfree.data.KeyedValues2D

   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:  * KeyedValues2D.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: KeyedValues2D.java,v 1.3.2.2 2005/10/25 21:29:13 mungady Exp $
  36:  *
  37:  * Changes
  38:  * -------
  39:  * 28-Oct-2002 : Version 1 (DG);
  40:  * 12-Jan-2005 : Updated Javadocs (DG);
  41:  *
  42:  */
  43: 
  44: package org.jfree.data;
  45: 
  46: import java.util.List;
  47: 
  48: /**
  49:  * An extension of the {@link Values2D} interface where a unique key is 
  50:  * associated with the row and column indices.
  51:  */
  52: public interface KeyedValues2D extends Values2D {
  53: 
  54:     /**
  55:      * Returns the row key for a given index.
  56:      *
  57:      * @param row  the row index (zero-based).
  58:      *
  59:      * @return The row key.
  60:      * 
  61:      * @throws IndexOutOfBoundsException if <code>row</code> is out of bounds.
  62:      */
  63:     public Comparable getRowKey(int row);
  64: 
  65:     /**
  66:      * Returns the row index for a given key.
  67:      *
  68:      * @param key  the row key.
  69:      *
  70:      * @return The row index, or <code>-1</code> if the key is unrecognised.
  71:      */
  72:     public int getRowIndex(Comparable key);
  73: 
  74:     /**
  75:      * Returns the row keys.
  76:      *
  77:      * @return The keys.
  78:      */
  79:     public List getRowKeys();
  80: 
  81:     /**
  82:      * Returns the column key for a given index.
  83:      *
  84:      * @param column  the column index (zero-based).
  85:      *
  86:      * @return The column key.
  87:      * 
  88:      * @throws IndexOutOfBoundsException if <code>row</code> is out of bounds.
  89:      */
  90:     public Comparable getColumnKey(int column);
  91: 
  92:     /**
  93:      * Returns the column index for a given key.
  94:      *
  95:      * @param key  the column key.
  96:      *
  97:      * @return The column index, or <code>-1</code> if the key is unrecognised.
  98:      */
  99:     public int getColumnIndex(Comparable key);
 100: 
 101:     /**
 102:      * Returns the column keys.
 103:      *
 104:      * @return The keys.
 105:      */
 106:     public List getColumnKeys();
 107: 
 108:     /**
 109:      * Returns the value associated with the specified keys.
 110:      *
 111:      * @param rowKey  the row key (<code>null</code> not permitted).
 112:      * @param columnKey  the column key (<code>null</code> not permitted).
 113:      *
 114:      * @return The value.
 115:      * 
 116:      * @throws UnknownKeyException if either key is not recognised.
 117:      */
 118:     public Number getValue(Comparable rowKey, Comparable columnKey);
 119: 
 120: }