Just spewing out ideas in my head - warning: they may be stupid, or
impossible in Java since I'm in ActionScript mode and I've been working on
my AS injector. So forgive lapses in existing Guice / Java syntax ;-)
What if there were some sort of hierarchical scope maintained while
injecting a particular object graph that could be hooked into at bind time?
Something along the lines of:
class Person {
@Inject
@Inherit(annotation=Named.class)
@Named("direct")
Phone directPhone;
@Inject
@Named("floor")
@Inherit(annotation=Named.class)
Phone floorPhone;
}
@Named("accounts")
class Accounts {
@Inject
@Named("bob")
Person bob;
@Inject
@Named("sue")
Person sue;
}
bind(Phone.class).annotatedWith(Names.named("direct")).inheritingAnnotation(Names.named("bob")).to(bobsDeskPhone);
bind(Phone.class).annotatedWith(Names.named("direct")).inheritingAnnotation(Names.named("sue")).to(suesDeskPhone);
bind(Phone.class).annotatedWith(Names.named("floor")).inheritingAnnotation(Names.named("accounts")).to(accountsReceptionPhone);
Thoughts?
-Josh
On Wed, Sep 10, 2008 at 2:27 PM, [EMAIL PROTECTED] <[EMAIL PROTECTED]>wrote:
>
>
>
> On Sep 9, 10:06 am, Mikkel Petersen <[EMAIL PROTECTED]> wrote:
> > Thanks I'll take a look at it. Wish there was a more simple way to do
> > it though.
>
> Definitely, we have this problem internally at Google as well.
> We're planning on building out the hierarchical injectors so
> they solve this problem natively.
>
> If you're curious, I've written a blog post that attempts to
> explain the motivations for hierarchical injectors:
> http://publicobject.com/2008/06/whats-hierarchical-injector.html
>
> >
>
--
"Therefore, send not to know For whom the bell tolls. It tolls for thee."
http://flex.joshmcdonald.info/
:: Josh 'G-Funk' McDonald
:: 0437 221 380 :: [EMAIL PROTECTED]
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