So I see this as a heavy overlap in that all of the functionality you describe 
will exist in the microcontainer as used by jboss5. The reply I gave to Charles 
on "Design of MC for Bean configuration" 
(http://www.jboss.com/index.html?module=bb&op=viewtopic&t=73288) also overlaps 
here.

Also, have you navigated to the kernel design wiki page?
http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossKernel

The current disconnects are just in terms completeness with respect to the 
level of usage you are starting at. For example:

1. hotdeployment is an interaction of bean (monitor + deployer) similar to what 
we have today. Only a deployer notion exists currently.

2. this is possible, but the term "service configuration" is an overloaded term 
thinking of the existing jboss-service.xml mbean service in that the 
configuration are the attribute associated with the mbean declaration, and 
changing this in jboss4 involves redeployment of the service. Decoupling 
declaration of a service from its configuration metadata is fundamental notion 
in the mc. The configuration for services/beans that should be installed to the 
mc is the profile service in the kernel design related pages 
(http://wiki.jboss.org/wiki/Wiki.jsp?page=JBossKernelConfiguration).

3. Yes, this is an aspect of the metadata repository that I'm currently working 
on. This does not exist at all implementation wise, but is what I'm currently 
working on. The metadata repository is a store of pojo metadata with a 
hierarchical namespace. The hierarchical structure defines the level at which 
the metadata is introduced/loaded: THREAD, REQUEST, SESSION, DEPLOYMENT, 
APPLICATION, SERVER, CLUSTER, DOMAIN

The are two elements to your usecase:
a. repository loaders: how data from a given level is loaded. 
b. a management aspect that ties together that runtime modification of data at 
a given level needs to be written to a particular store.

All of what you are talking about intersects with the mc notions.


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