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 * ClearCallback.java
20 *
21 */
22
23 package javax.jdo.listener;
24
25
26 /**
27 * This interface is used to notify instances of clear events.
28 * @version 2.0
29 * @since 2.0
30 */
31 public interface ClearCallback {
32
33 /**
34 * Called before the values in the instance are cleared.
35 *
36 * <P>Transient fields should be cleared in this method.
37 * Associations between this
38 * instance and others in the runtime environment should be cleared.
39 *
40 * <P>This method is not modified by the enhancer.
41 */
42 void jdoPreClear();
43 }