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Java > Open Source Codes > org > objectweb > medor > eval > prefetch > lib > DummyPrefetchBuffer


1 /**
2  * MEDOR: Middleware Enabling Distributed Object Requests
3  *
4  * Copyright (C) 2001-2003 France Telecom R&D
5  * Contact: alexandre.lefebvre@rd.francetelecom.com
6  *
7  * This library is free software; you can redistribute it and/or
8  * modify it under the terms of the GNU Lesser General Public
9  * License as published by the Free Software Foundation; either
10  * version 2.1 of the License, or (at your option) any later version.
11  *
12  * This library is distributed in the hope that it will be useful,
13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15  * Lesser General Public License for more details.
16  *
17  * You should have received a copy of the GNU Lesser General Public
18  * License along with this library; if not, write to the Free Software
19  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
20  *
21  * Initial developers: M. Alia, A. Lefebvre, S. Chassande-Barrioz
22  */
23 package org.objectweb.medor.eval.prefetch.lib;
24
25 import org.objectweb.medor.eval.prefetch.api.PrefetchBuffer;
26 import org.objectweb.medor.api.MedorException;
27 import org.objectweb.medor.tuple.api.TupleCollection;
28 import org.objectweb.medor.tuple.api.Tuple;
29
30 /**
31  * This class represents dummy PrefetchBuffers in the case the transactional
32  * context is null.
33  * @author A. Lefebvre
34  */
35 public class DummyPrefetchBuffer implements PrefetchBuffer {
36
37     public void addPrefetchTuple() throws MedorException {
38     }
39
40     public void setTupleCollection(TupleCollection tc) throws MedorException {
41     }
42
43     public void close() throws MedorException {
44     }
45
46     public boolean isClosed() {
47         return false;
48     }
49
50     public Tuple getTuple(Object JavaDoc index) throws MedorException {
51         return null;
52     }
53
54     public TupleCollection getTupleCollection(Object JavaDoc index) throws MedorException {
55         return null;
56     }
57 }
58
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