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Java > Open Source Codes > org > objectweb > perseus > persistence > api > VirtualState


1 /**
2  * Copyright (C) 2003 France Telecom R&D
3  *
4  * This library is free software; you can redistribute it and/or
5  * modify it under the terms of the GNU Lesser General Public
6  * License as published by the Free Software Foundation; either
7  * version 2 of the License, or (at your option) any later version.
8  *
9  * This library is distributed in the hope that it will be useful,
10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12  * Lesser General Public License for more details.
13  *
14  * You should have received a copy of the GNU Lesser General Public
15  * License along with this library; if not, write to the Free Software
16  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
17  */
18 package org.objectweb.perseus.persistence.api;
19
20 import org.objectweb.perseus.cache.api.CacheEntry;
21
22 /**
23  * This simple implementation of the State interface can be used in order to
24  * simulate a State into a Working set in case of cache eviction.
25  *
26  * @author S.Chassande-Barrioz
27  */
28 public final class VirtualState implements State {
29
30     public final static State instance = new VirtualState();
31
32     private VirtualState() {
33     }
34
35     public final CacheEntry getCacheEntry() {
36         return null;
37     }
38 }
39
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