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Java > Open Source Codes > jxl > biff > IndexMapping


1 /*********************************************************************
2 *
3 * Copyright (C) 2003 Andrew Khan
4 *
5 * This library is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU Lesser General Public
7 * License as published by the Free Software Foundation; either
8 * version 2.1 of the License, or (at your option) any later version.
9 *
10 * This library is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * Lesser General Public License for more details.
14 *
15 * You should have received a copy of the GNU Lesser General Public
16 * License along with this library; if not, write to the Free Software
17 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
18 ***************************************************************************/
19
20 package jxl.biff;
21
22 import common.Logger;
23
24 /**
25  * This class is a wrapper for a list of mappings between indices.
26  * It is used when removing duplicate records and specifies the new
27  * index for cells which have the duplicate format
28  */
29 public final class IndexMapping
30 {
31   /**
32    * The logger
33    */
34   private static Logger logger = Logger.getLogger(IndexMapping.class);
35
36   /**
37    * The array of new indexes for an old one
38    */
39   private int[] newIndices;
40
41   /**
42    * Constructor
43    *
44    * @param size the number of index numbers to be mapped
45    */
46   IndexMapping(int size)
47   {
48     newIndices = new int[size];
49   }
50
51   /**
52    * Sets a mapping
53    * @param oldIndex the old index
54    * @param newIndex the new index
55    */
56   void setMapping(int oldIndex, int newIndex)
57   {
58     newIndices[oldIndex] = newIndex;
59   }
60
61   /**
62    * Gets the new cell format index
63    * @param oldIndex the existing index number
64    * @return the new index number
65    */
66   public int getNewIndex(int oldIndex)
67   {
68     return newIndices[oldIndex];
69   }
70 }
71
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