Changes to Events API

Hi,
from the discussions that I saw at some external mailing lists and from 
the discussions I had with the people here at Sun that intend to use the 
  MDR it showed up that what would be a good thing to have is a 
possibility to listen to events on objects' containers (composites). 
This means that the events should be propagated not only up to the 
proxies, but also to objects' composites. This way someone who wants to 
listen to any changes in a Java class would listen to the class only 
(and would not be forced to register listeners to all the methods, their 
parameters, attributes, etc.) The same is applicable in many other cases 
(UML metamodel, XML, etc.)
Thus I propose that events on RefObjects are propagated also to their 
composites. Once the event gets to the composite, it will be propagated 
to its composite, but not to its proxies (thus the current event path 
via proxies would be followed only for events originating from the given 
RefObject). I.e.:

APackage extent contains AClass and BClass class proxies, A is instance 
for AClass, B is instance for BClass.
A is a component of B, A is changed -> event goes to A, from A to AClass 
and B, at B it is forgoten, from AClass it goes to APackage, from 
APackage it goes to repository.

Now the question is, how the listeners should register for the events 
from containers. I would like to add method addListener(..., boolean 
includeComponents), however this would be applicable only for 
registering listeners on RefObjects. Should there be a special 
RefObjectEventSource for RefObjects? Any suggestions are welcome.
Martin