Source code: com/virtuosotechnologies/lib/command/CommandNodeListener.java
1 /*
2 ================================================================================
3
4 FILE: CommandNodeListener.java
5
6 PROJECT:
7
8 Virtuoso Utilities
9
10 CONTENTS:
11
12 A listener for changes to the command node hierarchy
13
14 PROGRAMMERS:
15
16 Daniel Azuma (DA) <dazuma@kagi.com>
17
18 COPYRIGHT:
19
20 Copyright (C) 2003 Daniel Azuma (dazuma@kagi.com)
21
22 This program is free software; you can redistribute it and/or
23 modify it under the terms of the GNU General Public License as
24 published by the Free Software Foundation; either version 2
25 of the License, or (at your option) any later version.
26
27 This program is distributed in the hope that it will be useful,
28 but WITHOUT ANY WARRANTY; without even the implied warranty of
29 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
30 GNU General Public License for more details.
31
32 You should have received a copy of the GNU General Public
33 License along with this program; if not, write to
34 Free Software Foundation, Inc.
35 59 Temple Place, Suite 330
36 Boston, MA 02111-1307 USA
37
38 ================================================================================
39 */
40
41
42 package com.virtuosotechnologies.lib.command;
43
44 import java.util.EventListener;
45 import java.lang.reflect.Method;
46
47 import com.virtuosotechnologies.lib.util.EventBroadcastHelper;
48
49
50 /**
51 * A listener for changes to the command node hierarchy
52 */
53 public interface CommandNodeListener
54 extends EventListener
55 {
56 /**
57 * Method object referring to the childAdded method
58 */
59 public static final Method CHILD_ADDED_METHOD =
60 EventBroadcastHelper.getListenerMethod(CommandNodeListener.class,
61 "childAdded", ChildAddedEvent.class);
62
63 /**
64 * Method object referring to the childRemoved method
65 */
66 public static final Method CHILD_REMOVED_METHOD =
67 EventBroadcastHelper.getListenerMethod(CommandNodeListener.class,
68 "childRemoved", ChildRemovedEvent.class);
69
70 /**
71 * Method object referring to the allChildrenRemoved method
72 */
73 public static final Method ALL_CHILDREN_REMOVED_METHOD =
74 EventBroadcastHelper.getListenerMethod(CommandNodeListener.class,
75 "allChildrenRemoved", AllChildrenRemovedEvent.class);
76
77
78 /**
79 * Child added
80 */
81 public void childAdded(
82 ChildAddedEvent e);
83
84
85 /**
86 * Child removed
87 */
88 public void childRemoved(
89 ChildRemovedEvent e);
90
91
92 /**
93 * All children removed
94 */
95 public void allChildrenRemoved(
96 AllChildrenRemovedEvent e);
97 }