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Java > Open Source Codes > org > dbunit > dataset > ForwardOnlyTable


1 /*
2  *
3  * The DbUnit Database Testing Framework
4  * Copyright (C)2002-2004, DbUnit.org
5  *
6  * This library is free software; you can redistribute it and/or
7  * modify it under the terms of the GNU Lesser General Public
8  * License as published by the Free Software Foundation; either
9  * version 2.1 of the License, or (at your option) any later version.
10  *
11  * This library is distributed in the hope that it will be useful,
12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
14  * Lesser General Public License for more details.
15  *
16  * You should have received a copy of the GNU Lesser General Public
17  * License along with this library; if not, write to the Free Software
18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
19  *
20  */
21 package org.dbunit.dataset;
22
23 /**
24  * @author Manuel Laflamme
25  * @since Apr 9, 2003
26  * @version $Revision: 1.2 $
27  */
28 public class ForwardOnlyTable implements ITable
29 {
30     private final ITable _table;
31     private int _lastRow = -1;
32
33     public ForwardOnlyTable(ITable table)
34     {
35         _table = table;
36     }
37
38     ////////////////////////////////////////////////////////////////////////////
39 // ITable interface
40
41     public ITableMetaData getTableMetaData()
42     {
43         return _table.getTableMetaData();
44     }
45
46     public int getRowCount()
47     {
48         throw new UnsupportedOperationException JavaDoc();
49     }
50
51     public Object JavaDoc getValue(int row, String JavaDoc column) throws DataSetException
52     {
53         if (row < _lastRow)
54         {
55             throw new UnsupportedOperationException JavaDoc("Cannot go backward!");
56         }
57
58         _lastRow = row;
59         return _table.getValue(row, column);
60     }
61 }
62
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