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 import org.slf4j.Logger;
24 import org.slf4j.LoggerFactory;
25
26 /**
27 * @author Manuel Laflamme
28 * @since Apr 9, 2003
29 * @version $Revision$
30 */
31 public class ForwardOnlyTable implements ITable
32 {
33
34 /**
35 * Logger for this class
36 */
37 private static final Logger logger = LoggerFactory.getLogger(ForwardOnlyTable.class);
38
39 private final ITable _table;
40 private int _lastRow = -1;
41
42 public ForwardOnlyTable(ITable table)
43 {
44 _table = table;
45 }
46
47 ////////////////////////////////////////////////////////////////////////////
48 // ITable interface
49
50 public ITableMetaData getTableMetaData()
51 {
52 return _table.getTableMetaData();
53 }
54
55 public int getRowCount()
56 {
57 throw new UnsupportedOperationException();
58 }
59
60 public Object getValue(int row, String column) throws DataSetException
61 {
62 if(logger.isDebugEnabled())
63 logger.debug("getValue(row={}, columnName={}) - start", Integer.toString(row), column);
64
65 if (row < _lastRow)
66 {
67 throw new UnsupportedOperationException("Cannot go backward!");
68 }
69
70 _lastRow = row;
71 return _table.getValue(row, column);
72 }
73 }