Source code: com/virtuosotechnologies/asaph/maingui/DatabaseListener.java
1 /*
2 ================================================================================
3
4 FILE: DatabaseListener.java
5
6 PROJECT:
7
8 Asaph
9
10 CONTENTS:
11
12 Database change listener
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.asaph.maingui;
43
44
45 import java.util.EventListener;
46 import java.lang.reflect.Method;
47
48 import com.virtuosotechnologies.lib.util.EventBroadcastHelper;
49 import com.virtuosotechnologies.lib.util.EventAbortedException;
50
51
52 /**
53 * Database change listener
54 */
55 public interface DatabaseListener
56 extends EventListener
57 {
58 public static final Method DATABASE_CLOSING_METHOD =
59 EventBroadcastHelper.getListenerMethod(DatabaseListener.class,
60 "databaseClosing", DatabaseEvent.class);
61
62 public static final Method DATABASE_OPENED_METHOD =
63 EventBroadcastHelper.getListenerMethod(DatabaseListener.class,
64 "databaseOpened", DatabaseEvent.class);
65
66 public static final Method DATABASE_CLOSED_METHOD =
67 EventBroadcastHelper.getListenerMethod(DatabaseListener.class,
68 "databaseClosed", DatabaseEvent.class);
69
70
71 /**
72 * A database is closing. The listener may abort the close.
73 *
74 * @param ev DatabaseEvent
75 */
76 public void databaseClosing(
77 DatabaseEvent ev)
78 throws
79 EventAbortedException;
80
81
82 /**
83 * A database has been opened
84 *
85 * @param ev DatabaseEvent
86 */
87 public void databaseOpened(
88 DatabaseEvent ev);
89
90
91 /**
92 * A database has been closed
93 *
94 * @param ev DatabaseEvent
95 */
96 public void databaseClosed(
97 DatabaseEvent ev);
98 }