Thanks Rickard for looking into this.
When you say "got generic lookups like this to work.." you refer to 2.0 branch
status, correct ?
As of now, I think the most necessary work is on the "registering a generic
service" side.
To write it up like what I know in Guice (with all the clutter I personally
don't like):
bind(new TypeLiteral<Foo<Bar>>(){}).to(X);
As of 2.0 branch, looking into it as I think this is crucial when considering
Qi4J, next to its strong DDD focus also as a valuable DI framework.
I would see ( maybe a future version of ) qi4j as a superset of DI frameworks.
- or would you say that pure DI frameworks (mostly familiar with Guice) are by
concept superior to qi4j in its domain and you shoult never attempt to think
"guice" in qi4j ?
Toni Menzel
Consultant | ISG Technology
Morgan Stanley Bank AG | Junghofstrasse 13-15 | Floor 0G
60311 Frankfurt
Phone: +49 69 2166-2103
[email protected]
-----Original Message-----
From: [email protected]
[mailto:[email protected]] On Behalf Of Rickard Öberg
Sent: Wednesday, June 29, 2011 8:45 AM
To: [email protected]
Subject: Re: [qi4j-dev] Generic Services in Qi4J ?
Ok, followup to previous response. After a little tinkering I got generic
lookups like this to work as well:
@Service
Foo<T> fooService;
As long as the actual mixin/object that needs the injection has resolved T
(e.x. to String), the Qi4j runtime can figure this out and inject String
instead of T.
Example:
public abstract class AbstractFooMixin<T> {
@Service Foo<T> fooService;
}
public class FooMixin
extends AbstractFooMixin<String>
{}
If FooMixin is used, then T can be resolved to String, and so injection of the
Foo<String> service works properly.
/Rickard
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