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Java > Open Source Codes > org > dbunit > dataset > stream > StreamingDataSet


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.stream;
22
23 import org.dbunit.dataset.*;
24
25 /**
26  * Dataset that consumes producer asyncronously.
27  *
28  * @author Manuel Laflamme
29  * @since Apr 18, 2003
30  * @version $Revision: 1.4 $
31  */
32 public class StreamingDataSet extends AbstractDataSet
33 {
34     private IDataSetProducer _source;
35     private int _iteratorCount;
36
37     public StreamingDataSet(IDataSetProducer source)
38     {
39         _source = source;
40     }
41
42     ////////////////////////////////////////////////////////////////////////////
43 // AbstractDataSet class
44
45     protected ITableIterator createIterator(boolean reversed)
46             throws DataSetException
47     {
48         if (reversed)
49         {
50             throw new UnsupportedOperationException JavaDoc(
51                     "Reverse iterator not supported!");
52         }
53
54         if (_iteratorCount > 0)
55         {
56             throw new UnsupportedOperationException JavaDoc(
57                     "Only one iterator allowed!");
58         }
59
60         _iteratorCount++;
61         return new StreamingIterator(_source);
62     }
63
64     ////////////////////////////////////////////////////////////////////////////
65 // IDataSet interface
66
67     /**
68      * Not supported.
69      * @throws UnsupportedOperationException
70      */
71     public String JavaDoc[] getTableNames() throws DataSetException
72     {
73         throw new UnsupportedOperationException JavaDoc();
74     }
75
76     /**
77      * Not supported.
78      * @throws UnsupportedOperationException
79      */
80     public ITableMetaData getTableMetaData(String JavaDoc tableName) throws DataSetException
81     {
82         throw new UnsupportedOperationException JavaDoc();
83     }
84
85     /**
86      * Not supported.
87      * @throws UnsupportedOperationException
88      */
89     public ITable getTable(String JavaDoc tableName) throws DataSetException
90     {
91         throw new UnsupportedOperationException JavaDoc();
92     }
93
94 }
95
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