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

On 10-04-20 11:31 AM, Lincoln Baxter, III wrote: Wait -- there's no "Prototype" or "always new" scope? @Dependent or @New, from case to case. --Lincoln On Tue, Apr 20, 2010 at 6:45 AM, Stuart Douglas < stuart(a)baileyroberts.com.au&gt; 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 > >> https://lists.jboss.org/mailman/listinfo/seam-dev > > > > > _______________________________________________ > seam-dev mailing list > seam-dev(a)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 listseam-dev@lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/seam-dev