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Java > Open Source Codes > org > objectweb > perseus > cache > replacement > lib > FIFOReplacementManager


1 /**
2  * Copyright (C) 2001-2002
3  * - France Telecom R&D
4  * - Laboratoire Logiciels, Systemes, Reseaux - UMR 5526, CNRS-INPG-UJF
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 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  * Release: 1.0
21  *
22  * Authors:
23  *
24  */
25
26 package org.objectweb.perseus.cache.replacement.lib;
27
28 import org.objectweb.perseus.cache.replacement.api.ReplaceableCacheEntry;
29
30 /**
31  * @author E. Bruneton
32  */
33 public class FIFOReplacementManager extends AbstractReplacementManager {
34
35     /**
36      * Logical clock used to assign an access time to entries
37      */
38     protected long date;
39
40     public FIFOReplacementManager() {
41         date = Long.MIN_VALUE;
42     }
43
44     protected void add(ReplaceableCacheEntry entry) {
45         entry.setCeAge(date++);
46     }
47
48     protected void touch(ReplaceableCacheEntry entry) {
49         // does nothing
50 }
51 }
52
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