InitablePersistenceBrokerDaoSupport xref

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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one or more
3    * contributor license agreements.  See the NOTICE file distributed with
4    * this work for additional information regarding copyright ownership.
5    * The ASF licenses this file to You under the Apache License, Version 2.0
6    * (the "License"); you may not use this file except in compliance with
7    * the License.  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  package org.apache.jetspeed.components.dao;
18  
19  import java.net.URL;
20  
21  import org.apache.ojb.broker.metadata.DescriptorRepository;
22  import org.apache.ojb.broker.metadata.MetadataManager;
23  import org.apache.ojb.broker.metadata.RepositoryPersistor;
24  import org.springframework.orm.ojb.support.PersistenceBrokerDaoSupport;
25  
26  /***
27   * <p>
28   * InitablePersistenceBrokerDaoSupport
29   * </p>
30   * <p>
31   *
32   * </p>
33   * @author <a href="mailto:weaver@apache.org">Scott T. Weaver</a>
34   * @version $Id: InitablePersistenceBrokerDaoSupport.java 224631 2005-07-24 17:03:46Z taylor $
35   *
36   */
37  public class InitablePersistenceBrokerDaoSupport extends PersistenceBrokerDaoSupport
38  {
39  
40      protected String repositoryPath;
41      /***
42       * 
43       */
44      public InitablePersistenceBrokerDaoSupport(String repositoryPath)
45      {
46          super();
47          this.repositoryPath = repositoryPath;
48          
49      }
50      
51      
52      /***
53       * 
54       * <p>
55       * init
56       * </p>
57       * Loads the correct repository descriptor for InitablePersistenceBrokerDaoSupport
58       *
59       * @see org.springframework.orm.ojb.support.PersistenceBrokerDaoSupport
60       * @throws Exception
61       */
62      public void init() throws Exception
63      {
64          MetadataManager metaManager = MetadataManager.getInstance();
65          RepositoryPersistor persistor = new RepositoryPersistor();
66          URL descriptorUrl = getClass().getClassLoader().getResource(repositoryPath);
67  
68          logger.info("Merging OJB respository "+descriptorUrl+" for DAO class "+getClass().getName());
69          DescriptorRepository repo = persistor.readDescriptorRepository(descriptorUrl.openStream());
70          metaManager.mergeDescriptorRepository(repo);
71      }
72  
73  }