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1   /***
2    *  Copyright 2003-2010 Terracotta, Inc.
3    *
4    *  Licensed under the Apache License, Version 2.0 (the "License");
5    *  you may not use this file except in compliance with the License.
6    *  You may obtain a copy of the License at
7    *
8    *      http://www.apache.org/licenses/LICENSE-2.0
9    *
10   *  Unless required by applicable law or agreed to in writing, software
11   *  distributed under the License is distributed on an "AS IS" BASIS,
12   *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13   *  See the License for the specific language governing permissions and
14   *  limitations under the License.
15   */
16  
17  package net.sf.ehcache.hibernate.nonstop;
18  
19  import net.sf.ehcache.hibernate.regions.EhcacheCollectionRegion;
20  import net.sf.ehcache.hibernate.regions.EhcacheEntityRegion;
21  import net.sf.ehcache.hibernate.strategy.EhcacheAccessStrategyFactory;
22  
23  import org.hibernate.cache.access.AccessType;
24  import org.hibernate.cache.access.CollectionRegionAccessStrategy;
25  import org.hibernate.cache.access.EntityRegionAccessStrategy;
26  import org.slf4j.Logger;
27  import org.slf4j.LoggerFactory;
28  
29  /***
30   * Implementation of {@link EhcacheAccessStrategyFactory} that takes care of Nonstop cache exceptions using
31   * {@link HibernateNonstopCacheExceptionHandler}
32   *
33   * @author Abhishek Sanoujam
34   *
35   */
36  public class NonstopAccessStrategyFactory implements EhcacheAccessStrategyFactory {
37  
38      private static final Logger LOG = LoggerFactory.getLogger(NonstopAccessStrategyFactory.class);
39      private final EhcacheAccessStrategyFactory actualFactory;
40  
41      /***
42       * Constructor accepting the actual factory
43       *
44       * @param actualFactory
45       */
46      public NonstopAccessStrategyFactory(EhcacheAccessStrategyFactory actualFactory) {
47          this.actualFactory = actualFactory;
48      }
49  
50      /***
51       * {@inheritDoc}
52       */
53      public EntityRegionAccessStrategy createEntityRegionAccessStrategy(EhcacheEntityRegion entityRegion, AccessType accessType) {
54          return new NonstopAwareEntityRegionAccessStrategy(actualFactory.createEntityRegionAccessStrategy(entityRegion, accessType),
55                  HibernateNonstopCacheExceptionHandler.getInstance());
56      }
57  
58      /***
59       * {@inheritDoc}
60       */
61      public CollectionRegionAccessStrategy createCollectionRegionAccessStrategy(EhcacheCollectionRegion collectionRegion,
62              AccessType accessType) {
63          return new NonstopAwareCollectionRegionAccessStrategy(actualFactory.createCollectionRegionAccessStrategy(collectionRegion,
64                  accessType), HibernateNonstopCacheExceptionHandler.getInstance());
65      }
66  
67  }