View Javadoc

1   /*
2    * Copyright 2005 The Apache Software Foundation.
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  /*
18   * AttachCallback.java
19   *
20   */
21   
22  package javax.jdo.listener;
23  
24  import javax.jdo.PersistenceManager;
25  
26  /***
27   * This interface is used to notify instances of attach events.
28   * @version 2.0
29   * @since 2.0
30   */
31  public interface AttachCallback {
32      
33      /***
34       * This method is called during the execution of
35       * {@link PersistenceManager#makePersistent} on the detached instance
36       * before the copy is made.
37       * @since 2.0
38       */
39      public void jdoPreAttach();
40  
41      /***
42       * This method is called during the execution of
43       * {@link PersistenceManager#makePersistent} on the persistent
44       * instance after the copy is made.
45       * @param attached	The corresponding (non-attached) instance that was
46       * attached in the call to {@link PersistenceManager#makePersistent}.
47       * @since 2.0
48       */
49      public void jdoPostAttach(Object attached);
50  }