[cdi-dev] Feedback from Devoxx

Tue Nov 18 05:07:52 EST 2014

And what if the Concurrency spec is splitted in several parts ? We could
@Schedule or @Startup a servlet with just a subset of Concurrency for
example.

On Tue, Nov 18, 2014 at 11:06 AM, Antoine Sabot-Durand <
antoine at sabot-durand.net> wrote:

>
> Le 17 nov. 2014 à 21:53, Antonio Goncalves <antonio.goncalves at gmail.com>
> a écrit :
>
> Would you like to see @Inject in JSR 250 ?
>
>
> No, but in the end it’s a good thing that it is not in CDI (in a far
> lighter spec), so it can be used by other DI solution for the sake of end
> users.
>
> I don't think it's a good idea to put everything in Commons Annotations.
> It makes sense to have @Startup, @Pooling, @Scedule, @Asynchronous where it
> fits better.
>
>
> Again, it’s a only Java EE pov, having such dependencies in Java SE can be
> a real handicap. Take @Startup for instance. Its purpose is to make sure
> that a bean is instantiated at startup. Why in the hell would I want to
> drag all the concurrency spec to only have this annotation ?
> I don’t say that it’s the case for all annotations, but we should really
> consider having this multiple purpose annotation in light spec. For
> instance I’m not against having our @Produces moved to AtInject (and
> perhaps renamed to @Provides to end the mix with JAX-RX Produces) to share
> this concept with all other implementations.
>
>
> Antonio
>
> On Mon, Nov 17, 2014 at 5:30 PM, Antoine Sabot-Durand <
> antoine at sabot-durand.net> wrote:
>
>> Guys, don’t forget the commons annotation specification since we’re going
>> to ask for a MR for it. It could be a convenient solution to share
>> annotation without having a huge dependency to have it (think of SE).
>>
>> Antoine
>>
>>
>> Le 17 nov. 2014 à 16:53, Antonio Goncalves <antonio.goncalves at gmail.com>
>> a écrit :
>>
>> @Startup could also make sense in Concurrency in Java EE, like @Pooling
>> (there's thread pools behind).  BTW I was talking to the Oracle guys and
>> it looks like the Concurrency spec will be updated in EE 8... I don't know
>> how far the update will go.
>>
>> As for the JMS stuff, we talked with Nigel and he likes the idea of MDB
>> replacement going to where it belongs : the JMS spec
>>
>> Antonio
>>
>> On Mon, Nov 17, 2014 at 4:28 PM, arjan tijms <arjan.tijms at gmail.com>
>> wrote:
>>
>>> Hi,
>>>
>>> On Mon, Nov 17, 2014 at 2:57 PM, Antoine Sabot-Durand
>>> <antoine at sabot-durand.net> wrote:
>>> > Just to give you a small feedback of my Devoxx week regarding CDI and
>>> CDI 2.0 (for the rest, what happens in Devoxx stays in Devoxx ;) )
>>> >
>>> > 1) Great expectations:
>>> > [...] (the question of total EJB replacement came more than once)
>>>
>>> I heard this a number of times as well, both before and during Devoxx.
>>>
>>> A great number of issues for decoupling EJB features (meaning,
>>> providing CDI based replacements) have already been created as spec
>>> issues:
>>>
>>> * Decoupling the @Schedule annotation from the EJB component model
>>> (EJB_SPEC-1)
>>> * Decoupling the TimerService API from the EJB component model
>>> (EJB_SPEC-2)
>>> * Decoupling the @Asynchronous annotation from the EJB component model
>>> (EJB_SPEC-3)
>>> * Decoupling the @Lock/@AccessTimeout annotations from the EJB
>>> component model (EJB_SPEC-4)
>>> * Decoupling the @Startup/@DependsOn annotations from the EJB
>>> component model (EJB_SPEC-19)
>>> * Standardize Pooling and Decouple from EJB Component Model
>>> (EJB_SPEC-113)
>>> * Redefine Message Driven Beans as Managed Beans (EJB_SPEC-18)
>>> * Standardize Abstractions for Common Message Processing Patterns
>>> (JMS_SPEC-154)
>>> * Allow Java EE components other than MDBs to consume messages
>>> asynchronously (JMS_SPEC-100)
>>> * Bind JMS to CDI events and/or business interfaces (JMS_SPEC-88)
>>> * Support for "self" injection (CDI-414)
>>> * Allow access-control related JSR-250 security annotations on managed
>>> beans (JAVASERVERFACES_SPEC_PUBLIC-495)
>>> * Support @RolesAllowed on a Servlet (SERVLET_SPEC-29)
>>>
>>>
>>> There are some additional features that may not yet have been covered
>>> (but maybe I missed them), such as:
>>>
>>> * Control over passivation
>>> * Support for the extended persistence context
>>> * Destroying a bean whenever an exception occurs (I was just working
>>> on this the other week)
>>> * Logging the exception thrown by a bean (yes, trivial, but part of EJB)
>>> * The concept where every method call on a proxy is routed to another
>>> bean instance, which is then automatically unavailable for other calls
>>> as long as it doesn't return (related to the "Standardize Pooling"
>>> issue)
>>> * Binary remoting without all the explicit mapping that's needed for
>>> say JAX-RS  (yes, thorny issue which we may not wish to support
>>> anymore?)
>>> * General support for @RolesAllowed/@RunAs etc (often mentioned, and
>>> two issues for JSF managed beans resp Servlets were created, but no
>>> general issue)
>>>
>>> The question is perhaps where all this functionality should live.
>>>
>>> TimerService and @Asynchronous in the concurrency spec?
>>> All JMS/messaging listener stuff (aka MDB replacements) in the JMS spec?
>>> @RolesAllowed etc in the security spec (if that spec will actually
>>> happen)
>>> @Startup in the CDI spec itself?
>>> Destroying bean on exception in CDI spec?
>>>
>>> But where should e.g. pooling belong?
>>>
>>> Kind regards,
>>> Arjan Tijms
>>> _______________________________________________
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>>> cdi-dev at lists.jboss.org
>>> https://lists.jboss.org/mailman/listinfo/cdi-dev
>>>
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>>>
>>
>>
>>
>> --
>> Antonio Goncalves
>> Software architect, Java Champion and Pluralsight author
>>
>> Web site <http://www.antoniogoncalves.org/> | Twitter
>> <http://twitter.com/agoncal> | LinkedIn
>> <http://www.linkedin.com/in/agoncal> | Pluralsight
>> <http://pluralsight.com/training/Authors/Details/antonio-goncalves> | Paris
>> JUG <http://www.parisjug.org/> | Devoxx France <http://www.devoxx.fr/>
>>
>>
>>
>
>
> --
> Antonio Goncalves
> Software architect, Java Champion and Pluralsight author
>
> Web site <http://www.antoniogoncalves.org/> | Twitter
> <http://twitter.com/agoncal> | LinkedIn
> <http://www.linkedin.com/in/agoncal> | Pluralsight
> <http://pluralsight.com/training/Authors/Details/antonio-goncalves> | Paris
> JUG <http://www.parisjug.org/> | Devoxx France <http://www.devoxx.fr/>
>
>
>

-- 
Antonio Goncalves
Software architect, Java Champion and Pluralsight author

Web site <http://www.antoniogoncalves.org> | Twitter
<http://twitter.com/agoncal> | LinkedIn <http://www.linkedin.com/in/agoncal> |
Pluralsight
<http://pluralsight.com/training/Authors/Details/antonio-goncalves> | Paris
JUG <http://www.parisjug.org> | Devoxx France <http://www.devoxx.fr>
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