1 /*
2 * Copyright 1999-2003 Sun Microsystems, Inc. All Rights Reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Sun designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Sun in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
22 * CA 95054 USA or visit www.sun.com if you need additional information or
23 * have any questions.
24 */
25
26 package javax.management;
27
28
29 /**
30 * Represents a notification emitted by the MBean server through the MBeanServerDelegate MBean.
31 * The MBean Server emits the following types of notifications: MBean registration, MBean
32 * de-registration.
33 * <P>
34 * To receive to MBeanServerNotifications, you need to be declared as listener to
35 * the {@link javax.management.MBeanServerDelegate javax.management.MBeanServerDelegate} MBean
36 * that represents the MBeanServer. The ObjectName of the MBeanServerDelegate is:
37 * <CODE>JMImplementation:type=MBeanServerDelegate</CODE>.
38 *
39 * @since 1.5
40 */
41 public class MBeanServerNotification extends Notification {
42
43
44 /* Serial version */
45 private static final long serialVersionUID = 2876477500475969677L;
46
47 /**
48 * Notification type denoting that an MBean has been registered. Value is "JMX.mbean.registered".
49 */
50 public static final String REGISTRATION_NOTIFICATION = "JMX.mbean.registered" ;
51
52 /**
53 * Notification type denoting that an MBean has been unregistered. Value is "JMX.mbean.unregistered".
54 */
55 public static final String UNREGISTRATION_NOTIFICATION = "JMX.mbean.unregistered" ;
56
57
58 /**
59 * @serial The object names of the MBeans concerned by this notification
60 */
61 private final ObjectName objectName;
62
63
64 /**
65 * Creates an MBeanServerNotification object specifying object names of
66 * the MBeans that caused the notification and the specified notification type.
67 *
68 * @param type A string denoting the type of the
69 * notification. Set it to one these values: {@link
70 * #REGISTRATION_NOTIFICATION}, {@link
71 * #UNREGISTRATION_NOTIFICATION}.
72 * @param source The MBeanServerNotification object responsible
73 * for forwarding MBean server notification.
74 * @param sequenceNumber A sequence number that can be used to order
75 * received notifications.
76 * @param objectName The object name of the MBean that caused the notification.
77 *
78 */
79 public MBeanServerNotification(String type, Object source, long sequenceNumber, ObjectName objectName ) {
80 super (type,source,sequenceNumber) ;
81 this.objectName = objectName ;
82 }
83
84 /**
85 * Returns the object name of the MBean that caused the notification.
86 *
87 * @return the object name of the MBean that caused the notification.
88 */
89 public ObjectName getMBeanName() {
90 return objectName ;
91 }
92
93 }
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