you can achieve the same result with private modules. Then you don't
have to create the dummy classes.
see: https://groups.google.com/forum/#!topic/google-guice/h70a9pwD6_g
On 11/21/2013 10:25 PM, Jia Pu wrote:
I did try to achieve my goal using annotation. It works. But I wonder
if there's more concise way. My current solution is:
class BarA extends Bar {
@Inject
public Bar(@Named("A") Foo foo) { }
}
class BarB extends Bar {
@Inject
public Bar(@Named("B") Foo foo) { }
}
Then in the module:
bind(AbstractFoo.class).annotatedWith(Names.named("A")).to(FooA.class);
bind(AbstractFoo.class).annotatedWith(Names.named("B")).to(FooB.class);
Multibinder<Bar> binder = Multibinder.newSetBinder(binder(), new
Bar.class);
binder.addBinding().to(BarA.class);
binder.addBinding().to(BarB.class);
The problem here is that I need to create two dummy subclass, BarA and
BarB, in order to utilize annotation. I wonder if there's a way to
reduce this sort of boilerplate code.
On Wednesday, November 20, 2013 4:04:20 PM UTC-8, Armin Bahramshahry
wrote:
Take a look at @Named,
https://code.google.com/p/google-guice/wiki/BindingAnnotations
<https://code.google.com/p/google-guice/wiki/BindingAnnotations>,
I believe that's what you wanna do
On Wednesday, November 20, 2013 12:29:30 PM UTC-8, Jia Pu wrote:
Let's same I have an abstract class with several subclasses:
public abstract AbstractFoo { }
public FooA extends AbstractFoo {}
public FooB extends AbstractFoo {}
public FooC extends AbstractFoo {}
There's also a class with following injection:
class Bar {
@Inject
public Bar(Foo foo) { }
}
Is it possible to add Bar multiple times into multibinder with
different concrete Foo classes?
Multibinder<Bar> binder = Multibinder.newSetBinder(binder(),
new Bar.class);
binder.addBinding .... // Now what?
Or did I completely miss the point of Guice here? I'm new to
java world, BTW.
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