jsr345-experts@ejb-spec.java.net

[jsr345-experts] Re: MDB improvements?

From: Marina Vatkina <marina.vatkina_at_oracle.com>
Date: Thu, 15 Sep 2011 13:39:20 -0700

Rick,

Do you have any suggestions/proposals?

thanks,
-marina

Rick Hightower wrote:
> Regardless of it is a bad way to go or not, it seems worth tabling for
> discussion. At least I am interested in hearing about it and how it
> would be different/better/worse than CDI events. MDBs are in EJB so
> improving them and making them easier to use is in scope IMO.
>
>
> On Wed, Sep 14, 2011 at 7:38 PM, Pete Muir <pmuir_at_bleepbleep.org.uk
> <mailto:pmuir_at_bleepbleep.org.uk>> wrote:
>
> I think this would be a bad direction to go in. I think
> concentrating on bridging JMS to CDI events would be far more
> powerful. I'm happy to bring a proposal to the group if that
> helps, though I think this is a topic better for the JMS EG.
>
> On 12 Sep 2011, at 20:07, Reza Rahman wrote:
>
> > Marina,
> >
> > I'm a bit tied up at the moment and this could be a lengthy
> discussion. I'll get a detailed proposal to you by tomorrow
> evening at the latest.
> >
> > The gist of it is basically decoupling message listeners from
> @MessageDriven so that messages may be consumed by any managed
> bean method (perhaps even a Servlet). I'd also like to see two
> distinct types of listeners -- one specific to JMS and another
> more generic for JCA. Each listener type would also have some
> powerful DI based features (such as automatically unwrapping
> message payloads, mapping headers to method parameters and so on).
> This is something we designed for Resin but have not yet
> implemented. We do feel is very doable and would be a good
> "modernization" of MDB.
> >
> > Cheers,
> > Reza
> >
> >
> > On 9/12/2011 6:21 PM, Marina Vatkina wrote:
> >> Reza,
> >>
> >> There is a plan (stay tuned) to make CMTs available outside
> EJBs. But how does it affect MDBs in the EJB container?
> >>
> >> thanks,
> >> -marina
> >>
> >> Reza Rahman wrote:
> >>> Marina,
> >>>
> >>> I think it's hard to have this discussion without starting to
> talk about decoupling transactions (and other services) from the
> EJB component model. Did you still want to have this discussion now?
> >>>
> >>> Cheers,
> >>> Reza
> >>>
> >>>
> >>> On 9/9/2011 9:11 PM, Marina Vatkina wrote:
> >>>> Experts,
> >>>>
> >>>> Does any of you have a wish-list for the MDB improvements in
> the EJB spec? This should be a purely EJB related changes, as the
> JMS 2.0 EG is looking carefully at the overall JMS revamp.
> >>>>
> >>>> thanks,
> >>>> -marina
> >>>>
> >>>>
> >>>>
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> >>>
> >>
> >>
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> >
>
>
>
>
> --
> *Rick Hightower*
> (415) 968-9037
> Profile <http://www.google.com/profiles/RichardHightower>
>