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1   /*
2    * Licensed to the Apache Software Foundation (ASF) under one
3    * or more contributor license agreements.  See the NOTICE file
4    * distributed with this work for additional information
5    * regarding copyright ownership.  The ASF licenses this file
6    * to you under the Apache License, Version 2.0 (the
7    * "License"); you may not use this file except in compliance
8    * with the License.  You may obtain a copy of the License at
9    *
10   *   http://www.apache.org/licenses/LICENSE-2.0
11   *
12   * Unless required by applicable law or agreed to in writing,
13   * software distributed under the License is distributed on an
14   * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15   * KIND, either express or implied.  See the License for the
16   * specific language governing permissions and limitations
17   * under the License.
18   */
19  package org.apache.myfaces.custom.conversation;
20  
21  /**
22   * the interface to help the conversation framework to deal with your persistence manager (EntityManager)
23   * 
24   * @author imario@apache.org
25   */
26  public interface PersistenceManager
27  {
28      /**
29       * commit the transaction
30       */
31      public void commit();
32  
33      /**
34       * rollback the transaction
35       */
36      public void rollback();
37  
38      /**
39       * attach to your underlaying persistence
40       */
41      public void attach();
42  
43      /**
44       * detach from your underlaying persistence
45       */
46      public void detach();
47  
48      /**
49       * purge this persistence manager - e.g. throw away your session due to some exceptions
50       */
51      void purge();
52  }