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

Mark Struberg struberg at yahoo.de
Tue Nov 13 08:04:34 EST 2012


A 2-edged sword.
Of course this is clearly a bug in the EE-6 spec and not in CDI.
Otoh I don't like to have the EE umbrella spec impose rules on a CDI container. They really are not allowed to impose such rules on CDI in the first place, isn't?

LieGrue,
strub




----- Original Message -----
> From: Pete Muir <pmuir at bleepbleep.org.uk>
> To: cdi-dev at lists.jboss.org
> Cc: 
> Sent: Tuesday, November 13, 2012 10:45 AM
> Subject: [cdi-dev] Fwd: [jsr342-experts] CDI in Application Client Container
> 
> 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
>>>> 
>>> 
>> 
> 
> 
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