Mbean dependency resolution

[aseembansal]

Hi,

I am looking for a way in which my mbean can retieve its dependent objects.

It seems that in the xml, I can specify my dependencies and container passes
that objectname (via a setter) in my Mbean. From there how can my mbean
retrieve the dependent object instance without using dynamic proxy.

-A

[raja05]

Have a optional-attribute-name attribute for ur depends clause, something like

<depends optional-attribute-name="dependBean">objectname</depends>

And create a setter and getter for dependBean

private ObjectName dependObjName;
public ObjectName getDependBean() {
 return this.dependBean;
}

and then use it as
 <Depend>MBean obj = (<depend>MBean) getServer().getAttribute(this.dependBean);

Check out jboss-service.xml for similar examples

[aseembansal]

Thanks for the reply.

Is this the only way to resolve the dependencies? In this case, a service has to expose getter/setter methods just to resolve the dependencies of dependents.

Is not there any componentRegistry in JBoss which maintains a mapping of objectName Vs objects.

-Aseem

[raja05]

Ofcourse there is, the MBeanRegistry implementation in jboss does have this. getServer().getAttribute(this.dependBean); is going to take this value from the Registry and return the MBean associated with the object name,

[aseembansal]

Thanks. That was what I was looking for.

-Aseem