[cdi-dev] Easy way to get 'original' type from alternative producers

[Martin Kouba]

Dne 15.2.2018 v 18:15 arjan tijms napsal(a):
> Hi,
> 
> On Thu, Feb 15, 2018 at 10:57 AM, Martin Kouba <mkouba at redhat.com 
> <mailto:mkouba at redhat.com>> wrote:
> 
> 
>     I think it could be a nice feature. Pls file a JIRA issue.
> 
> 
> Allright, I'll do that. Thx!
> 
> 
> 
>         In order to get that bean, a bunch of quite verbose code is
>         needed. I.e I came up with:
> 
>         HttpAuthenticationMechanism mechanism =
>               createRef(
>                   beanManager.resolve(
> 
> 
>     This wouldn't work because BeanManager.resolve() attempts to resolve
>     the ambiguities thus eliminate all non-alternative beans.
> 
> 
> It actually does seem to work, and I've been using it for a while now.

You're right - you're actually filtering the alternative bean 
(ApplicationInit producer) and so there is only one bean left.

> 
> 
> 
>     This would not work - you would need to distinguish the original
>     injection point.
> 
>                   return ...
>               }
>         }
> 
>         Or reuse the @Delegate (perhaps with the @Alternative annotation)
> 
> 
>     -1 This might be confusing.
> 
> 
> Agreed with both, it was just a bit of brain storming. Not sure what 
> would be a better name though. @Original? @NonAlternative?
> 
> Kind regards,
> Arjan Tijms
> 
> 

-- 
Martin Kouba
Senior Software Engineer
Red Hat, Czech Republic