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 package org.apache.shale.dialog.base;
19
20 import org.apache.shale.dialog.DialogContext;
21 import org.apache.shale.dialog.DialogContextManager;
22 import org.apache.shale.dialog.DialogContextManagerListener;
23
24 /***
25 * <p>Convenience abstract base class for {@link DialogContextManagerListener}
26 * instances. The default event handling methods do nothing.
27 * Subclasses are expected to be serializable.</p>
28 *
29 * @since 1.0.4
30 */
31 public abstract class AbstractDialogContextManagerListener
32 implements DialogContextManagerListener {
33
34
35 // ------------------------------------------------------ Instance Variables
36
37
38 /***
39 * <p>The {@link DialogContextManager} instance we are associated with.</p>
40 */
41 private DialogContextManager instance = null;
42
43
44 // -------------------------------------------------- Event Handling Methods
45
46
47 /*** {@inheritDoc} */
48 public void onCreate(DialogContext context) {
49
50 ; // Do nothing
51
52 }
53
54
55 /*** {@inheritDoc} */
56 public void onRemove(DialogContext context) {
57
58 ; // Do nothing
59
60 }
61
62
63 // --------------------------------------------------------------- Ownership
64
65
66 /*** {@inheritDoc} */
67 public DialogContextManager getDialogContextManager() {
68 return this.instance;
69 }
70
71
72 /*** {@inheritDoc} */
73 public void setDialogContextManager(DialogContextManager instance) {
74 this.instance = instance;
75 }
76
77
78 }