Package org.glassfish.external.amx

Class MBeanListener<T extends MBeanListener.Callback>

java.lang.Object

org.glassfish.external.amx.MBeanListener<T>

All Implemented Interfaces:

EventListener, NotificationListener

@Taxonomy(stability=UNCOMMITTED)
public class MBeanListener<T extends MBeanListener.Callback>
extends Object
implements NotificationListener

Listens for registration of MBeans of various types. Intended usage is for subsystems to lazy-load only when the Parent MBean is registered.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static interface	MBeanListener.Callback	Callback interface.
static class	MBeanListener.CallbackImpl	Default callback implementation, can be subclassed if needed Remembers only the last MBean that was seen.

Constructor Summary

Constructors

Constructor	Description
MBeanListener(MBeanServerConnection server, String domain, String type, String name, T callback)	Listener for MBeans of specified type, with specified name (or any name if null is passed for the name).
MBeanListener(MBeanServerConnection server, String domain, String type, T callback)	Listener for all MBeans of specified type, with or without a name.
MBeanListener(MBeanServerConnection server, ObjectName objectName, T callback)	Listener for a specific MBean.

Method Summary

Modifier and Type	Method	Description
T	getCallback()
MBeanServerConnection	getMBeanServer()
String	getName()
String	getType()
void	handleNotification(Notification notifIn, Object handback)
void	startListening()	Start listening.
void	stopListening()	unregister the listener
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Details

MBeanListener

public MBeanListener(MBeanServerConnection server,
 ObjectName objectName,
 T callback)

Listener for a specific MBean. Caller must call startListening() to start listening.

Parameters:

server -

objectName -

callback -

MBeanListener

public MBeanListener(MBeanServerConnection server,
 String domain,
 String type,
 T callback)

Listener for all MBeans of specified type, with or without a name. Caller must call startListening() to start listening.

Parameters:

server -

type - type of the MBean (as found in the ObjectName)

callback -

MBeanListener

public MBeanListener(MBeanServerConnection server,
 String domain,
 String type,
 String name,
 T callback)

Listener for MBeans of specified type, with specified name (or any name if null is passed for the name). Caller must call startListening() to start listening.

Parameters:

server -

type - type of the MBean (as found in the ObjectName)

name - name of the MBean, or null if none

callback -

Method Details

toString

public String toString()

Overrides:

toString in class Object

getType

public String getType()

getName

public String getName()

getMBeanServer

public MBeanServerConnection getMBeanServer()

getCallback

public T getCallback()

startListening

public void startListening()

Start listening. If the required MBean(s) are already present, the callback will be synchronously made before returning. It is also possible that the callback could happen twice for the same MBean.

stopListening

public void stopListening()

unregister the listener

handleNotification

public void handleNotification(Notification notifIn,
 Object handback)

Specified by:

handleNotification in interface NotificationListener