[jboss-dev-forums] [Design the new POJO MicroContainer] - Re: setting managed property of type List

[adrian@jboss.org]

"alesj" wrote : "adrian at jboss.org" wrote : 
  |   | Generically, we could allow some kind of plugin mechanism to allow
  |   | somebody to configure:
  |   | interface -> implementation class or factory
  | Even for non collection classes?
  | The composite ones.
  | Doesn't that defeat the whole purpose of OO? :-)

I don't get the reference to OO? This is reflection/serialization where we've
taken apart the object to split its state into "primitives".
The issue is how do we reconstruct it.

e.g.

  | @ManagementProperty
  | public void setSomething(Interface i) {}
  | 
  | public interface Interface
  | {
  |    void setInteger(int i);
  |    void setString(String s);
  | }
  | 

This is a composite with two primitive properties, but we don't know
what the implementation is.

There are two options
1) Create a proxy
http://viewvc.jboss.org/cgi-bin/viewvc.cgi/jbossas/trunk/mbeans/src/main/org/jboss/mx/mxbean/CompositeDataInvocationHandler.java?revision=57108&view=markup

2) Allow somebody to define what the implementation class is (or a factory to create one)

The proxy approach doesn't work for collections since they aren't javabeans.

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