1 /*
2 * This file is part of Domingo
3 * an Open Source Java-API to Lotus Notes/Domino
4 * hosted at http://domingo.sourceforge.net
5 *
6 * Copyright (c) 2003-2007 Beck et al. projects GmbH Munich, Germany (http://www.bea.de)
7 *
8 * This library is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU Lesser General Public
10 * License as published by the Free Software Foundation; either
11 * version 2.1 of the License, or (at your option) any later version.
12 *
13 * This library is distributed in the hope that it will be useful,
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 * Lesser General Public License for more details.
17 *
18 * You should have received a copy of the GNU Lesser General Public
19 * License along with this library; if not, write to the Free Software
20 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 */
22
23 package de.bea.domingo.monitor;
24
25
26 /***
27 * Null monitor, simply does nothing.
28 *
29 * @author <a href=mailto:kriede@users.sourceforge.net>Kurt Riede</a>
30 */
31 public final class NullMonitor extends AbstractDefaultMonitor {
32
33 /*** Singleton instance of this passive null monitor. */
34 private static final NullMonitor INSTANCE = new NullMonitor();
35
36 /***
37 * Constructor.
38 */
39 private NullMonitor() {
40 }
41
42 /***
43 * Returns a singleton instance of the null monitor.
44 *
45 * @return singleton instance of the null monitor
46 */
47 public static NullMonitor getInstance() {
48 return INSTANCE;
49 }
50
51 /***
52 * Monitor a message.
53 *
54 * @param message the message
55 */
56 protected void monitor(final String message) {
57 }
58
59 /***
60 * Monitor a throwable.
61 *
62 * @param throwable the throwable
63 */
64 protected void monitor(final Throwable throwable) {
65 }
66 }