[cdi-dev] Question about section 4.2

[Romain Manni-Bucau]

Hi

i think @EJB Foo<Bar> ignores Bar (or at least the ejb spec doesnt define
it)

*Romain Manni-Bucau*
*Twitter: @rmannibucau <https://twitter.com/rmannibucau>*
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2013/7/2 Pete Muir <pmuir at redhat.com>

>
> On 2 Jul 2013, at 11:28, John D. Ament <john.d.ament at gmail.com> wrote:
>
> > Hi all
> >
> > In section 4.2 of the CDI spec (both 1.0 and 1.1) there are references
> to injection around generic types.  I was wondering if someone could
> clarify this case?
> >
> > I have an interface:
> >
> > public interface Handler<? extends Foo> { ... }
> >
> > and then I have two implementations
> >
> > public class FarlowHandler implements Handler<Farlow> { .. }
> >
> > public class BagelHandler implements Handler<Bagel> { ... }
> >
> > Is it expected that I should be able to inject references to these by
> doing:
> >
> > @Inject
> > private Handler<Farlow> fHandler;
> >
> > @Inject
> > private Handler<Bagel> bHandler;
>
> Yes.
>
> >
> > ?  Is there any expected difference when using EJBs?
>
> Assuming the interface is part of the local client view of the EJB, then
> no. Obviously, if EJB has any rules around declaring generic types in local
> interfaces, then you need to respect those (IIRC, it doesn't).
>
>
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