AttributeChangeNotification (JBoss/JMX API) - JBoss 4.0.1 sp1 jmx API Documentation 英文版文档

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javax.management
Class AttributeChangeNotification

java.lang.Object
  java.util.EventObject
      javax.management.Notification
          javax.management.AttributeChangeNotification

All Implemented Interfaces:: Serializable

public class AttributeChangeNotification
extends Notification

This is the mandated object for sending notifications of attribute changes. The MBean may also send other types of notifications. The MBean must implement the NotificationBroadcaster interface to send this notification.

The following information is provided in addition to the that provided by Notification. The attribute's name, type, old value and new value.

The notification type is "jmx.attribute.change", defined in the static string ATTRIBUTE_CHANGE.

Version:

$Revision: 1.5 $

Revisions:

20020710 Adrian Brock:

Serialization

Author:

Adrian Brock.

Field Summary

static String ATTRIBUTE_CHANGE
          The AttributeChangeNotification notification type.

Fields inherited from class java.util.EventObject

source

Constructor Summary

AttributeChangeNotification(Object source, long sequenceNumber, long timeStamp, String msg, String attributeName, String attributeType, Object oldValue, Object newValue)
          Contruct a new attribute change notification.

Method Summary

String getAttributeName()
          Retrieves the name of the attribute.

String getAttributeType()
          Retrieves the type of the attribute.

Object getNewValue()
          Retrieves the new value of the attribute.

Object getOldValue()
          Retrieves the old value of the attribute.

String toString()


Methods inherited from class javax.management.Notification

getMessage, getSequenceNumber, getSource, getTimeStamp, getType, getUserData, setSequenceNumber, setSource, setTimeStamp, setUserData

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

ATTRIBUTE_CHANGE

public static final String ATTRIBUTE_CHANGE

The AttributeChangeNotification notification type. It is "jmx.attribute.change".

See Also:: Constant Field Values

Constructor Detail

AttributeChangeNotification

public AttributeChangeNotification(Object source,
                                   long sequenceNumber,
                                   long timeStamp,
                                   String msg,
                                   String attributeName,
                                   String attributeType,
                                   Object oldValue,
                                   Object newValue)

Contruct a new attribute change notification.
Parameters:: source - the source of the notification.; sequenceNumber - the instance of this notification.; timeStamp - the time the notification was generated.; msg - a human readable form of the change.; attributeName - the name of the attribute.; attributeType - the type of the attribute.; oldValue - the old value of the attribute.; newValue - the new value of the attribute.

Method Detail

getAttributeName

public String getAttributeName()

Retrieves the name of the attribute.

Returns:: the name of the attribute.

getAttributeType

public String getAttributeType()

Retrieves the type of the attribute.

Returns:: the type of the attribute.

getOldValue

public Object getOldValue()

Retrieves the old value of the attribute.

Returns:: the old value of the attribute.

getNewValue

public Object getNewValue()

Retrieves the new value of the attribute.

Returns:: the new value of the attribute.

toString

public String toString()

Overrides:: toString in class Notification

Returns:: human readable string.