1 /***
2 *
3 * Copyright 2004 Protique Ltd
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 **/
18 package org.codehaus.activespace.cache.hibernate;
19
20 import net.sf.hibernate.cache.Cache;
21 import net.sf.hibernate.cache.CacheException;
22 import net.sf.hibernate.cache.CacheProvider;
23 import org.codehaus.activespace.cache.TransactionalCacheManager;
24
25 import java.util.Properties;
26
27 /***
28 * A transactional cache provider for Hibernate using ActiveSpace and JCache.
29 *
30 * @version $Revision: 1.1 $
31 */
32 public class TransactionalCacheProvider implements CacheProvider {
33 private TransactionalCacheManager cacheManager;
34
35 public TransactionalCacheProvider() {
36 this(new TransactionalCacheManager());
37 }
38
39 public TransactionalCacheProvider(TransactionalCacheManager cacheManager) {
40 this.cacheManager = cacheManager;
41 }
42
43 public Cache buildCache(String regionName, Properties properties) throws CacheException {
44 try {
45 javax.cache.Cache cache = cacheManager.getCache(regionName);
46 if (cache == null) {
47 cache = cacheManager.getCacheFactory().createCache(properties);
48 cacheManager.registerCache(regionName, cache);
49 }
50 return new HibernateJCache(cache, regionName);
51 }
52 catch (javax.cache.CacheException e) {
53 throw new CacheException(e);
54 }
55 }
56
57 public long nextTimestamp() {
58 return System.currentTimeMillis();
59 }
60 }