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

[arjan tijms]

Thanks! Had it on my todo, but good that you created it ;)

On Tue, Feb 27, 2018 at 2:23 PM, Matej Novotny <manovotn at redhat.com> wrote:

> FYI I have taken the liberty to create CDI issue so that this is not
> forgotten (for I believe that it could be valuable addition).
> Feel free to comment - https://issues.jboss.org/browse/CDI-723
>
> Matej
>
> ----- Original Message -----
> > From: "Martin Kouba" <mkouba at redhat.com>
> > To: "arjan tijms" <arjan.tijms at gmail.com>
> > Cc: cdi-dev at lists.jboss.org
> > Sent: Friday, February 16, 2018 11:28:10 AM
> > Subject: Re: [cdi-dev] Easy way to get 'original' type from alternative
> producers
> >
> > 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
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