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

[Lincoln Baxter, III]

Ok yeah, thats what I thought.

@Produces @New -- would that not work?

On Tue, Apr 20, 2010 at 12:06 PM, Marius Bogoevici <
marius.bogoevici at gmail.com> wrote:

>  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 at 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 at lists.jboss.org
>> >> https://lists.jboss.org/mailman/listinfo/seam-dev
>> >
>>
>>
>> _______________________________________________
>> seam-dev mailing list
>> seam-dev at 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 at lists.jboss.orghttps://lists.jboss.org/mailman/listinfo/seam-dev
>
>
>


-- 
Lincoln Baxter, III
http://ocpsoft.com
http://scrumshark.com
"Keep it Simple"
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