[cdi-dev] Tests on observer resolution

John D. Ament john.d.ament at gmail.com
Sun Mar 16 19:56:28 EDT 2014

Funny that this comes up now.  I actually hacked into my coworker's
code using an observer on any object.

I always assumed the use of @Any in the examples came from a different
version of the event observer pattern where it was a best match, not
an any match.

On Sun, Mar 16, 2014 at 1:51 PM, Pete Muir <pmuir at redhat.com> wrote:
> Yeah, agreed, this is something I've puzzled over before.
> On 6 Mar 2014, at 11:51, Antoine Sabot-Durand <antoine at sabot-durand.net> wrote:
>> Hi all
>> Yesterday when reviewing Martin Pull Request [1] regarding CDI 422 [2], we started a discussion about Observer Resolution about a possible issue in the spec. I will not repeat what was said on the IRC, if you're interested you can check the transcript [3] from 09:43.
>> To check if this was an issue or not I did some test this morning with different implementations. You can grab the tests on Github [4]
>> Good news : OWB and Weld (1.x and 2.x) have the same behavior : the one describe in the current spec, so there are no issue on this point.
>> The only strange thing for me is that @Any seems totally useless regarding events firing
>> If you write :
>> @Inject Event<Payload> payLoadEvent;
>> or
>> @Inject @Any Event<Payload> payLoadEvent;
>> You'll always be allowed call payLoadEvent.select(new QualifierLiteral()) in both case...
>> Perhaps this point can be discussed to see if we remove @Any from the examples in the spec or if we enforce its usage in the specification...
>> Antoine
>> [1] https://github.com/cdi-spec/cdi/pull/207
>> [2] https://issues.jboss.org/browse/CDI-422
>> [3] http://transcripts.jboss.org/channel/irc.freenode.org/%23jsr346/2014/%23jsr346.2014-03-05.log.html
>> [4] https://github.com/antoinesd/EventsTest
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