[webbeans-dev] Fwd: static producers

[Chris Dempsey]

Hi all.  I've been a lurker on the list for a while and have been reading
and studying the spec like a mad man.  If I go off the rails here feel free
to let me know. :)

The only thing I can think of as a possible issue with this is Web Bean
specialization?  Static methods cannot be overridden and only hidden by
sub-classes and the declared type (any actual instance is ignored) is used
to resolve which static method is called.  If you had a static
Foo#producerMethod and a specialization of a static MockFoo#producerMethod
Web Beans would have to know to call MockFoo.producerMethod and couldn't
rely on Foo.producerMethod to resolve polymorphically to the specialized
producer method.

I don't think it would be a problem that couldn't be overcome but it would
seem to complicate the specialization rules quite a bit.

On Fri, Nov 14, 2008 at 11:50 AM, Gavin King <gavin at hibernate.org> wrote:

> ---------- Forwarded message ----------
> From: Gavin King <gavin at hibernate.org>
> Date: Fri, Nov 14, 2008 at 12:50 PM
> Subject: static producers
> To: Java Community Process JSR #299 Expert List <JSR-299-EG at jcp.org>
>
>
> Question:
>
> should we allow producer methods and fields to be declared "static"?
>
> This would mean that the Web Bean manager does not need to instantiate
> an instance of the Web Bean that declares the producer method/field
> when invoking the method/field.
>
> I can't think of a good reason why *not*...
>
> Furthermore, should we allow static observer and disposal methods?
> Again, I can't quite think of a reason why *not*...
>
> --
> Gavin King
> gavin.king at gmail.com
> http://in.relation.to/Bloggers/Gavin
> http://hibernate.org
> http://seamframework.org
>
>
>
> --
> Gavin King
> gavin.king at gmail.com
> http://in.relation.to/Bloggers/Gavin
> http://hibernate.org
> http://seamframework.org
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>
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