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Java > Open Source Codes > javax > jdo > listener > DirtyLifecycleListener


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  * DirtyLifecycleListener.java
19  *
20  */
21
22 package javax.jdo.listener;
23
24 /**
25  * This interface is implemented by listeners to be notified of
26  * dirty events.
27  * @version 2.0
28  * @since 2.0
29  */
30 public interface DirtyLifecycleListener
31     extends InstanceLifecycleListener {
32
33     /**
34      * Invoked whenever a persistent instance is first made dirty,
35      * during an operation that modifies the value of a persistent or
36      * transactional field. Called before the value is changed.
37      * @since 2.0
38      */
39     void preDirty (InstanceLifecycleEvent event);
40
41     /**
42      * Invoked whenever a persistent instance is first made dirty,
43      * during an operation that modifies the value of a persistent or
44      * transactional field. Called after the value is changed.
45      * @since 2.0
46      */
47     void postDirty (InstanceLifecycleEvent event);
48 }
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