[cdi-dev] Fwd: [jsr342-experts] CDI in Application Client Container

[Pete Muir]

All,

It's come to light that whilst the CDI spec explicitly does not require support for the Java EE client container, the Java EE spec does require support for it. There are no TCK tests for this.

The Java EE spec leads would like to rectify this by changing the CDI spec to require support for it, however, I would prefer to alter the Java EE spec and recognise this as a bug in the Java EE spec. IMO this relates very closely to Java SE support, which I we want to address in CDI 2, not in 1.1.

Thoughts?

Begin forwarded message:

> From: Jason Greene <jason.greene at redhat.com>
> Subject: [jsr342-experts] Re: CDI in Application Client Container
> Date: 12 November 2012 23:58:17 GMT
> To: jsr342-experts at javaee-spec.java.net
> 
> We purposefully did not include support for the app client container in the CDI spec, mainly because it has low usage, there are numerous differences in container implementations, SE support was politically unpopular at the time, and we were waiting to see what happened with modularity.
> 
> On Nov 11, 2012, at 2:07 PM, Bill Shannon <bill.shannon at oracle.com> wrote:
> 
>> Sigh...
>> 
>> It appears that we neither implemented nor tested support for CDI in the app client container.  Clearly something we'll need to fix for EE 7, if not sooner.
>> 
>> Bill Shannon wrote on 11/09/2012 04:47 PM:
>>> Yes, based on the Java EE 6 platform spec, I intended and expected CDI to work in the app client container.
>>> 
>>> I'm trying to find out what we actually implemented and tested...  :-)
>>> 
>>> Antonio Goncalves wrote on 11/09/12 14:10:
>>>> Ok, good to know. But that means that all ACC implementations should support it then ? As Pete said, looks like the JBoss one doesn't....
>>>> 
>>>> I found the mail I sent to the GlassFish forum a couple of years ago about this topic (http://www.java.net/forum/topic/glassfish/glassfish/using-cdi-acc-se-environment). I'll be doing more test to make sure and fill a bug if needed.
>>>> 
>>>> 
>>>> On Fri, Nov 9, 2012 at 10:57 PM, Bill Shannon <bill.shannon at oracle.com> wrote:
>>>> CDI is supposed to be supported in the app client container.  If it's not working, please file bugs.
>>>> 
>>>> Antonio Goncalves wrote on 11/09/12 06:09:
>>>>> Hum.... for me it's just another container (EJB, Servlet & Client) so I would expect the same services from CDI. ACC is not plain Java SE, it's a container that gives you a small set of services, and that includes CDI (as per Java EE specification). 
>>>>> 
>>>>> Bill/Linda, if CDI is not supported in ACC why not getting rid of it in Figure EE.2-1 ? It's confusing.
>>>>> 
>>>>> Antonio  
>>>>> 
>>>>> 
>>>>> On Fri, Nov 9, 2012 at 3:01 PM, Pete Muir <pmuir at bleepbleep.org.uk> wrote:
>>>>> This also ties in to more general Java SE support for CDI IMO. I would probably prefer to get a general solution sorted, rather than a special case for ACC.
>>>>> 
>>>>> On 9 Nov 2012, at 14:56, Antonio Goncalves wrote:
>>>>> 
>>>>>> I like to use Producers and Alternatives so I can easily switch context. In the case of having CDI in ACC that would allow me to invoke different Web Serivces just by changing beans.xml
>>>>>> 
>>>>>> 
>>>>>> On Fri, Nov 9, 2012 at 2:44 PM, Pete Muir <pmuir at bleepbleep.org.uk> wrote:
>>>>>> It's not in the cdi tck so I doubt it is in jboss as.
>>>>>> 
>>>>>> Nigel's point about scopes is very relevant.
>>>>>> On 9 Nov 2012 14:03, "Antonio Goncalves" <antonio.goncalves at gmail.com> wrote:
>>>>>> I'm not an ACC expert, but I do use it once in a while. But to be honest, I don't know why it doesn't work. If you look at the EE spec (eg. EE 7 - Figure EE.2-1) you see that CDI & DI is in the ACC. But on the other hand, the CDI 1.0 spec (12.1. Bean archives) says "The container is not required to support application client jar bean archives." I tried several time with the appclient from GlassFish, and CDI just doesn't work (wonder if JBoss ACC allows CDI or not). The "is not required" part is frustrating.
>>>>>> 
>>>>>> Antonio
>>>>>> 
>>>>>> 
>>>>>> On Fri, Nov 9, 2012 at 12:48 PM, Pete Muir <pmuir at bleepbleep.org.uk> wrote:
>>>>>> I'm not an expert in the ACC, so would need a ACC expert who knows CDI to help us define the behavior. Interested Antonio?
>>>>>> 
>>>>>> On 9 Nov 2012, at 12:41, Antonio Goncalves wrote:
>>>>>> 
>>>>>>> Hi all,
>>>>>>> 
>>>>>>> Correct me if I'm wrong but I haven't seen any discussion on this topic. In Java EE 6 CDI doesn't work in ACC. Wouldn't it be useful to add it in                                 EE 7 ?
>>>>>>> 
>>>>>>> A use case I'm working on at the moment is that I have a Java SE class (running in ACC) that injects a web service reference with @WebServiceRef. With CDI enabled I could produce this reference and just @Inject it.
>>>>>>> 
>>>>>>> What do you think ?
>>>>>>> 
>>>>>>> --
>>>>>>> Antonio Goncalves
>>>>>>> Software architect and Java Champion
>>>>>>> 
>>>>>>> Web site | Twitter | LinkedIn | Paris JUG | Devoxx France
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> Antonio Goncalves
>>>>>> Software architect and Java Champion
>>>>>> 
>>>>>> Web site | Twitter | LinkedIn | Paris JUG | Devoxx France
>>>>>> 
>>>>>> 
>>>>>> 
>>>>>> --
>>>>>> Antonio Goncalves
>>>>>> Software architect and Java Champion
>>>>>> 
>>>>>> Web site | Twitter | LinkedIn | Paris JUG | Devoxx France
>>>>> 
>>>>> 
>>>>> 
>>>>> 
>>>>> -- 
>>>>> Antonio Goncalves 
>>>>> Software architect and Java Champion
>>>>> 
>>>>> Web site | Twitter | LinkedIn | Paris JUG | Devoxx France
>>>> 
>>>> 
>>>> 
>>>> 
>>>> -- 
>>>> Antonio Goncalves 
>>>> Software architect and Java Champion
>>>> 
>>>> Web site | Twitter | LinkedIn | Paris JUG | Devoxx France
>>> 
>> 
>