MBeanServerNotification


1   /*
2    * @(#)MBeanServerNotification.java 4.24 03/12/19
3    * 
4    * Copyright 2004 Sun Microsystems, Inc. All rights reserved.
5    * SUN PROPRIETARY/CONFIDENTIAL. Use is subject to license terms.
6    */
7   
8   package javax.management;
9   
10  
11  /**
12   * Represents a notification emitted by the MBean server through the MBeanServerDelegate MBean. 
13   * The MBean Server emits the following types of notifications: MBean registration, MBean
14   * de-registration.
15   * <P>
16   * To receive to MBeanServerNotifications, you need to be declared as listener to
17   * the {@link javax.management.MBeanServerDelegate javax.management.MBeanServerDelegate} MBean
18   * that represents the MBeanServer. The ObjectName of the MBeanServerDelegate is:
19   * <CODE>JMImplementation:type=MBeanServerDelegate</CODE>.
20   *
21   * @since 1.5
22   */
23   public class MBeanServerNotification extends Notification     { 
24       
25  
26       /* Serial version */
27       private static final long serialVersionUID = 2876477500475969677L;
28  
29       /**
30        * Notification type denoting that an MBean has been registered. Value is "JMX.mbean.registered".
31        */  
32       public static final String   REGISTRATION_NOTIFICATION = "JMX.mbean.registered" ;
33       
34       /**
35        * Notification type denoting that an MBean has been unregistered. Value is "JMX.mbean.unregistered".
36        */  
37       public static final String   UNREGISTRATION_NOTIFICATION = "JMX.mbean.unregistered" ;
38            
39  
40       /** 
41        * @serial The object names of the MBeans concerned by this notification 
42        */
43       private final ObjectName   objectName;
44       
45  
46       /**
47        * Creates an MBeanServerNotification object specifying object names of
48        * the MBeans that caused the notification and the specified notification type.
49        *
50        * @param type A string denoting the type of the
51        * notification. Set it to one these values: {@link
52        * #REGISTRATION_NOTIFICATION}, {@link
53        * #UNREGISTRATION_NOTIFICATION}.
54        * @param source The MBeanServerNotification object responsible
55        * for forwarding MBean server notification.
56        * @param sequenceNumber A sequence number that can be used to order
57        * received notifications.
58        * @param objectName The object name of the MBean that caused the notification.
59        *
60        */          
61       public MBeanServerNotification(String   type, Object   source, long sequenceNumber, ObjectName   objectName ) { 
62       super (type,source,sequenceNumber) ;
63       this.objectName =  objectName ;
64       } 
65       
66       /**
67        * Returns the  object name of the MBean that caused the notification.
68        *
69        * @return the object name of the MBean that caused the notification.
70        */
71       public ObjectName   getMBeanName()  { 
72       return objectName ;
73       } 
74  
75   }
76
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