Re: [seam-dev] @Unwrap implementation in weld-extensions

Wait -- there's no "Prototype" or "always new" scope?

--Lincoln On Tue, Apr 20, 2010 at 6:45 AM, Stuart Douglas <stuart(a)baileyroberts.com.au <mailto:stuart@baileyroberts.com.au>> wrote: I don't think I will be able to implement the injection of InjectionPoint into the producer method, but other than that it should be possible to implement. Stuart On 20/04/2010, at 8:15 PM, Pete Muir wrote: > Yes, I agree. I had raised this issue during spec development - that there was no truly stateless scope in CDI, where the bean instance was created every time. > > I would like to hear from the 299 EG about this as well. > > On 20 Apr 2010, at 04:57, Stuart Douglas wrote: > >> I think that there is a real use case for something similar to the @Unwrap feature of seam 2. >> >> I think that it would be possible to implement something like this: >> >> @ConversationScoped >> public class ManagedPersistenceContext >> { >> >> EntityManager entityManager; >> >> @Unwrap >> @SomeQualifier >> public EntityManager produce(InjectionPoint injectionPoint) >> { >> entityManager.joinTransaction(); >> return entityManager; >> } >> } >> >> public class MyClass >> { >> @Inject @SomeQualifier EntityManager entityManager; >> } >> >> the way I envisage this working is that a proxy gets injected into MyClass, and this proxy calls ManagedPersistenceContext.produce to resolve the correct EntityManager to pass the call to every time a method is invoked on the proxy. >> >> I am pretty sure I can implement this in weld-extensions using JDK proxies, does this sound like a good idea? >> >> Stuart >> _______________________________________________ >> seam-dev mailing list >> seam-dev(a)lists.jboss.org <mailto:seam-dev@lists.jboss.org> >> https://lists.jboss.org/mailman/listinfo/seam-dev > _______________________________________________ seam-dev mailing list seam-dev(a)lists.jboss.org <mailto:seam-dev@lists.jboss.org> https://lists.jboss.org/mailman/listinfo/seam-dev -- Lincoln Baxter, III http://ocpsoft.com http://scrumshark.com "Keep it Simple" _______________________________________________ seam-dev mailing list seam-dev(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/seam-dev