1 /*
2 * ModeShape (http://www.modeshape.org)
3 * See the COPYRIGHT.txt file distributed with this work for information
4 * regarding copyright ownership. Some portions may be licensed
5 * to Red Hat, Inc. under one or more contributor license agreements.
6 * See the AUTHORS.txt file in the distribution for a full listing of
7 * individual contributors.
8 *
9 * ModeShape is free software. Unless otherwise indicated, all code in ModeShape
10 * is licensed to you under the terms of the GNU Lesser General Public License as
11 * published by the Free Software Foundation; either version 2.1 of
12 * the License, or (at your option) any later version.
13 *
14 * ModeShape is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
17 * Lesser General Public License for more details.
18 *
19 * You should have received a copy of the GNU Lesser General Public
20 * License along with this software; if not, write to the Free
21 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
22 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
23 */
24 package org.modeshape.graph.cache;
25
26 import net.jcip.annotations.Immutable;
27
28 /**
29 * A basic {@link CachePolicy} implementation with a fixed {@link #getTimeToLive() time to live}.
30 */
31 @Immutable
32 public class ImmutableCachePolicy implements CachePolicy {
33
34 private static final long serialVersionUID = 1L;
35 private final long timeToCache;
36
37 public ImmutableCachePolicy( long timeToCache ) {
38 this.timeToCache = timeToCache;
39 }
40
41 /**
42 * {@inheritDoc}
43 *
44 * @see org.modeshape.graph.cache.CachePolicy#getTimeToLive()
45 */
46 public long getTimeToLive() {
47 return this.timeToCache;
48 }
49
50 public CachePolicy getUnmodifiable() {
51 return this;
52 }
53
54 }