[webbeans-dev] Replacement pattern for Manager.getInstanceByType

[David Allen]

On Thu, 2009-05-28 at 10:52 -0500, Clint Popetz wrote:
> 
> 
> On Thu, May 28, 2009 at 10:51 AM, David Allen <drallendc at gmail.com>
> wrote:
>         On Thu, 2009-05-28 at 11:43 -0400, Dan Allen wrote:
>         > On Thu, May 28, 2009 at 11:14 AM, Pete Muir
>         <pmuir at redhat.com> wrote:
>         >
>         >         On 28 May 2009, at 16:04, Dan Allen wrote:
>         >
>         >         > On Thu, May 28, 2009 at 6:35 AM, Pete Muir
>         >         > <pmuir at redhat.com> wrote:
>         >         >         Yeah, this is used a lot in the TCK, and
>         maybe a bit
>         >         >         in addons which enable injection in types
>         WB doesn't
>         >         >         know about (?), but I don't think users
>         will hit it.
>         >         >
>         >         > Correct, users really should hit this. It's used
>         heavily in
>         >         > tests, for instance in AbstractWebBeans tests.
>         >
>         >
>         >         Hmm, yes you might well want to use this in a
>         standalone, unit
>         >         test, environment as an entry point.
>         >
>         > It would be great if we can add a convenience method to
>         > AbstractWebBeansTest. That would pretty much clear up any
>         annoyances.
>         
>         
>         Yes, that is the plan.  Ditto for the TCK abstract test class.
>         
> 
> 
> I got the TCK compiling locally with the new BeanManager interface,
> but rather than adding the bridge methods to the old SPI methods in
> the abstract test class, I added them to a separate utility class,
> because several things in the TCK that aren't test subclasses use this
> functionality as well.
> 
> I can also add a method to the abstract test class to delegate to the
> utility class.
> 
> Is that ok?

Yeah, that sounds good.  Most of our tests do extend an abstract class,
so I just thought that would be a little cleaner in the code to use a
member method.

> 
> -Clint
>  
> 
>         
>         >
>         >
>         >
>         >
>         >         > It is also used when you are entering from outside
>         the WB
>         >         > environment. You get a handle to manager and
>         lookup the type
>         >         > that gives you entry. For instance, you might look
>         up the
>         >         > Identity component and then invoke some method on
>         it which
>         >         > may trigger a chain of WB injections once
>         "inside".
>         >
>         >
>         >         Yes, this is addon frameworks, not end users.
>         >
>         > Yep, agreed. I've found that injection is sufficient for all
>         but those
>         > "entry point" cases.
>         >
>         > -Dan
>         >
>         >
>         > --
>         > Dan Allen
>         > Senior Software Engineer, Red Hat | Author of Seam in Action
>         >
>         > http://mojavelinux.com
>         > http://mojavelinux.com/seaminaction
>         > http://in.relation.to/Bloggers/Dan
>         >
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>         
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> 
> 
> -- 
> Clint Popetz
> http://42lines.net
> Scalable Web Application Development