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From "Aaron Mulder" <ammul...@alumni.princeton.edu>
Subject Re: We might need "aliased" modules/configurations/artifactIds
Date Thu, 14 Sep 2006 19:32:24 GMT
I sure wouldn't mind if a module could say "I provide javax.foo.Bar"
and a separate module could say "I require a parent that provides
javax.foo.Bar"...  As in, interface dependencies instead of name-based
dependencies.

Thanks,
     Aaron

On 9/14/06, David Jencks <david_jencks@yahoo.com> wrote:
> I started working on a version of geronimo that uses the jta11
> transaction manager in the sandbox.  So, I wrote a new transaction
> configuration using the new gbean and started trying to assemble a
> server.  My new config has gbeans with exactly the same names (except
> for artifactId) as the old jta 1.0.1B configuration (present in
> GERONIMO-2398, please vote).  Now it turns out that in order to swap
> these configs I am going to need to change almost all the other
> configs so they depend on my new one instead of the old one.
>
>
> This highlights a need for more functional-based dependencies.
> Conceptually we kind of want to say, "this module depends on a module
> supplying services A, B, C"
>
> One idea I had that might be pretty easy to implement would be to
> expand the explicit-versions resolving code a bit so that you can
> supply a properties file that says "replace requests for artifactId X
> with artifactId Y"  and plug it in the the artifact resolver,
> configuration, and kernel so that when you ask for a gbean with
> artifactId X you get one with the same name map and interfaces but
> with artifactId Y.  I think of this as aliasing X as Y (or maybe its
> vice-versa).
>
> I'm starting to try to implement this since I'm kind of blocked
> without something like this... but this might not be the best
> possible solution or even the easiest.  Anyone want to comment or
> suggest better ideas?
>
> thanks
> david jencks
>
>

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