[jboss-as7-dev] Moving EJB3 code into the AS7 source tree

[Andrig Miller]

----- Original Message -----

> From: "Jason T. Greene" <jason.greene at redhat.com>
> To: "Stuart Douglas" <stuart.w.douglas at gmail.com>
> Cc: "JBoss AS7 Development" <jboss-as7-dev at lists.jboss.org>
> Sent: Wednesday, August 24, 2011 3:20:12 PM
> Subject: Re: [jboss-as7-dev] Moving EJB3 code into the AS7 source
> tree

> On 8/24/11 4:08 PM, Stuart Douglas wrote:
> > Hi Guys,
> >
> > While looking at some EJB3 stuff I began to wonder just how much
> > stuff
> > from the JBoss EJB3 maven artefacts we actually use. Even though
> > there
> > is a lot of artefacts, it turns out that we use around 75 classes
> > from
> > EJB3, and more than half of them are timer service related (It
> > looks
> > like a lot of the stuff in the EJB3 package is either legacy stuff
> > that
> > is just hanging around).
> >
> > Given that the majority of the actual EJB logic / implementation is
> > in
> > the AS modules (in the EJB and EE modules), I was wondering if it
> > would
> > be worth merging the whole of EJB into AS7 and dumping the EJB3
> > aggregator project altogether.
> >
> > I have a branch that does this here (although this branch has not
> > migrated any tests yet):
> >
> > https://github.com/stuartwdouglas/jboss-as/tree/remove
> >
> > Personally I think this would make it much easier to refactor, and
> > would
> > also allow us to remove some adaptor classes between AS7 and EJB3
> > (e.g.
> > AS7 has to sub class the EJB3 interceptors, rather than EJB3
> > providing
> > real jboss invocation interceptors).

> I agree 1000% on this. In the past we had already decided to keep the
> ejb3 impl in the AS tree, so I think we should avoid splitting off
> components that are purely ejb3 specific and don't have use
> elsewhere.

> I haven't reviewed all of this patch, but one thing that I had
> noticed
> earlier is that we have some code that was just copied over and not
> really in use (e.g. some broken pool implementations). IMO if we
> aren't
> using / supporting stuff in AS we should just not carry it over.

+1 to both of these. It would make my life easier on the performance team too. 

> --
> Jason T. Greene
> JBoss AS Lead / EAP Platform Architect
> JBoss, a division of Red Hat
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