[cdi-dev] EE 7 "component classes supporting injection" and interceptors

[Bill Shannon]

Yes, this is one of those "integration" requirements that would normally be
tested by the spec that specifies the requirement.  The challenge, of course,
is what is the correct division of responsibilities for testing.  Only the
CDI tests should know how to test that injection is working properly in a
CDI bean.  The other specs effectively say that this class that CDI would
not otherwise consider a bean must be considered a bean.

It might be reasonable for the Servlet and WebSocket TCKs to do some simple
injection testing for these classes.  But if you wanted more complete testing
of injection for these classes, it would be good if the tests in these other
TCKs had a way to delegate that testing to the CDI TCK.  This is not really a
spec issue, but more of a software engineering issue.  I would let the TCK
groups figure out how best to handle this.  I definitely wouldn't want the
Servlet or WebSockets TCK to attempt to duplicate all the CDI injection tests.

Pete Muir wrote on 10/18/13 07:20:
> Bill/Linda,
> 
> Question about whose responsibility it is to test injections into Java EE components.
> 
> Pete
> 
> On 18 Oct 2013, at 13:49, Martin Kouba <mkouba at redhat.com> wrote:
> 
>> Dne 17.10.2013 15:07, Pete Muir napsal(a):
>>>
>>> On 17 Oct 2013, at 12:06, Martin Kouba <mkouba at redhat.com> wrote:
>>>
>>>> Hi all,
>>>>
>>>> today when I walked through EE 7 umbrella spec I found some parts which
>>>> indicate that all "component classes supporting injection" (servlets,
>>>> JSP tag handlers, ...) must also support
>>>> interceptors (if CDI is enabled).
>>>>
>>>> EE.5.24 Support for Dependency Injection
>>>> "Therefore, to make injection support more uniform across all Java EE
>>>> component types, Java EE containers are required to support field,
>>>> method, and constructor injection using the javax.inject.Inject
>>>> annotation into all component classes listed in Table EE.5-1 as having
>>>> the “Standard” level of injection support, as well as the use of
>>>> interceptors for these classes."
>>>>
>>>> EE.5.2.5 Annotations and Injection
>>>> "The component classes listed in Table EE.5-1 with support level
>>>> “Standard” all support Java EE resource injection, as well as
>>>> PostConstruct and PreDestroy callbacks. In addition, if CDI is
>>>> enabled—which it is by default—these classes also support CDI injection,
>>>> as described in Section EE.5.24, “Support for Dependency Injection”, and
>>>> the use of interceptors."
>>>>
>>>> Is my interpretation correct or am I missing something? Actually I doubt
>>>> it works correctly on EE 7 containers out there.
>>>
>>> I believe you are correct. I think I also asked Bill and Linda about whose responsibility it was to test this, and it wasn't ours (though we could test it if we wanted).
>>
>> I think individual specs which mention this requirement (e.g. Servlet
>> and WebSocket) should test it (I guess there's no "EE umbrella
>> integration TCK").
>>
>>>
>>> Do you want me to follow up with them?
>>
>> Please do. Thanks! :-)
>>
>>>
>>>>
>>>> M
>>>>
>>>> -- 
>>>> Martin Kouba
>>>> JBoss Quality Assurance Engineer
>>>> CDI TCK lead
>>>> Red Hat, Czech Republic
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>>>
>>
> 
>