Hello. I'm very new to EJB3 and JBoss but going over the materials, it seems 
like it is a solution to what I'm trying to accomplish.

I have a very dynamic situation (who doesn't!) and I want to build the backend 
of the application in a "componentized" way.

So I have Entity objects that can be persisted with Hibernate. I would like to 
use container managed persistence (not required but seems like it would be good 
to use that).

I have various components:

- Contacts and addresses maintenance
- Invoicing
- Inventory
-  etc

Each component may need to use services from the other. Like invoicing needs 
data from inventory and contacts/addresses.

But I want to be able to build/deploy each component on its own (assuming it 
does not need a more recent API from a component that hasn't been deployed).

E.g.: I want to be able to add new features to the Invoicing component without 
having to deploy anything new from Contacts.

Is EJB3 and JBoss the solution or part of the solution?

I was looking at that and I thought that I would make a project for each and 
deploy each as their own EAR but then I'm not sure how to get data from Contact 
from the Invoicing code.

Anybody could give me some pointers?

Etienne





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