- All Implemented Interfaces:
It's up to the MBean owning the attribute of interest to create and send
attribute change notifications when the attribute change occurs.
NotificationBroadcaster interface has to be implemented
by any MBean for which an attribute change is of interest.
If an MBean called
myMbean needs to notify registered listeners
when its attribute:
myMbeancreates and emits the following notification:
new AttributeChangeNotification(myMbean, sequenceNumber, timeStamp, msg, "myString", "String", oldValue, newValue);
- See Also:
- Serialized Form
Field SummaryModifier and TypeFieldDescription
static StringNotification type which indicates that the observed MBean attribute value has changed.
Methods declared in class javax.management.Notification
getMessage, getSequenceNumber, getTimeStamp, getType, getUserData, setSequenceNumber, setSource, setTimeStamp, setUserData, toString
AttributeChangeNotificationpublic AttributeChangeNotification(Object source, long sequenceNumber, long timeStamp, String msg, String attributeName, String attributeType, Object oldValue, Object newValue)Constructs an attribute change notification object. In addition to the information common to all notification, the caller must supply the name and type of the attribute, as well as its old and new values.
source- The notification producer, that is, the MBean the attribute belongs to.
sequenceNumber- The notification sequence number within the source object.
timeStamp- The date at which the notification is being sent.
msg- A String containing the message of the notification.
attributeName- A String giving the name of the attribute.
attributeType- A String containing the type of the attribute.
oldValue- An object representing value of the attribute before the change.
newValue- An object representing value of the attribute after the change.
getAttributeNamepublic String getAttributeName()Gets the name of the attribute which has changed.
- A String containing the name of the attribute.
getAttributeTypepublic String getAttributeType()Gets the type of the attribute which has changed.
- A String containing the type of the attribute.
getOldValuepublic Object getOldValue()Gets the old value of the attribute which has changed.
- An Object containing the old value of the attribute.
getNewValuepublic Object getNewValue()Gets the new value of the attribute which has changed.
- An Object containing the new value of the attribute.