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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  
18  /*
19   * DetachCallback.java
20   *
21   */
22   
23  package javax.jdo.listener;
24  
25  /**
26   * This interface is used to notify instances of detach events.
27   * @version 2.0
28   * @since 2.0
29   */
30  public interface DetachCallback {
31      
32      /**
33       * This method is called during the execution of
34       * {@link javax.jdo.PersistenceManager#detachCopy} on the
35       * persistent instance before the copy is made.
36       * @since 2.0
37       */
38      public void jdoPreDetach();
39  
40      /**
41       * This method is called during the execution of
42       * {@link javax.jdo.PersistenceManager#detachCopy} on the
43       * detached instance after the copy is made.
44       * @param detached The corresponding (attached) persistent instance.
45       * @since 2.0
46       */
47      public void jdoPostDetach(Object detached);
48  }