How are the Notifications send in ServiceController handled

[vickyk]

 // Call create on the service Proxy
 try
 {
 ctx.proxy.create();
 sequenceNo++;
 Notification createMsg = new Notification(ServiceMBean.CREATE_EVENT,
 this, sequenceNo);
 createMsg.setUserData(serviceName);
 sendNotification(createMsg);
 }

Above is the code snippet from the ServiceController .create(ObjectName serviceName , Collection depends) .
I am not able to understand
1) Who receives the Notification Message from the sendNotification(createMsg);
2) And how is this used ?

Some direction with reference to the code will be helpful .

Regards
Vicky

[dimitris]

You don't really care who receives the notification, that's the whole point: anyone can subscribe to it.

One example might be the management layer that creates its jsr77 view based on notifications received by other mbeans.

[starksm64]

Right, see the org.jboss.management.j2ee.LocalJBossServerDomain jsr77 implementation in the jboss-x/management module which illustrates a service registering to receive lifecycle notifications.

[vickyk]

You don't really care who receives the notification, that's the whole point: anyone can subscribe to it.

Ok that means if you have a dependent custom Management Layer you will subscribe it to listen to the Notification generated by the booting process. I am not able to think/visualize of any the real use case , can you please provide me some ?

Regards
Vicky

[starksm64]

The usecase is illustrated by the current jsr77 implementation. Originally this was a tightly coupled feature of the deployers. Now the deployers simply emit their state change notifications and the jsr77 implementation is layer on top that builds the jsr77 tree.