[webbeans-dev] Replacement pattern for Manager.getInstanceByType

[Dan Allen]

On Tue, Jul 21, 2009 at 10:50 AM, Peter Royle <howardmoon at screamingcoder.com
> wrote:

> Sorry to drag this up again, but this has changed now that
> manager.getReference(...) requires a CreationalContext, about which I
> know very little. I'll try reading the latest spec soon, but in the
> meantime if anyone has any silver bullets please let me know.
>
> I'm currently using this utility method:
>
>     public static <T> T getInstanceByType(BeanManager manager,
> Class<T> type, Annotation... bindings) {
>         return (T)manager.getReference(
>                 manager.getBeans(type).iterator().next(), type, null);
>     }
>
> Obviously it's that null at the end (where CreationalContext should
> be) that's causing the problem.


You just use the manager to create a CreationalContext for the bean.

beanManager.createCreationalContext(bean)

If an instance already exists, the CreationalContext is not used. Someone
correct me if I am wrong.

-Dan

-- 
Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action
Registered Linux User #231597

http://mojavelinux.com
http://mojavelinux.com/seaminaction
http://in.relation.to/Bloggers/Dan
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