You need to require the Map<String,String>, not the raw Map class.

 requireBinding(Key.get(new TypeLiteral<Map<String,String>>(){}, MyMap))

On Monday, September 19, 2016 at 3:25:03 PM UTC+2, Steve Storck wrote:
>
> Some of my modules require a binding from another module.  I want to set 
> up a requireBinding in the dependent modules' configure() method, but it 
> doesn't seem to be working for me.  Here is an example of what I am doing:
>
> @BindingAnnotation
> @Target([FIELD, PARAMETER, METHOD])
> @Retention(RUNTIME)
> @interface MyMap {
> }
>
> class ModuleA extends AbstractModule {
>     protected void configure() {
>     }
>
>     @Provides
>     @Singleton
>     @MyMap
>     static def Map<String, String> myMap() {
>         ImmutableMap.copyOf(
>                 [A: 'val1',
>                  B: 'val2']
>         )
>     }
> }
>
> class ModuleB extends AbstractModule {
>     protected void configure() {
>         requireBinding(Key.get(Map, MyMap))
>         bind Foo
>     }
> }
>
> class ModuleIT extends Specification {
>     def 'Test module configuration'() {
>         setup:
>         def injector = Guice.createInjector new ModuleA(), new ModuleB()
>
>         when:
>         def result = injector.getInstance Foo
>
>         then:
>         result instanceof Foo
>         result.someMap instanceof Map<String, String>
>     }
> }
>
> This results in an error when createInjector is called:
> com.google.inject.CreationException: Unable to create injector, see the 
> following errors:
> 1) No implementation for java.util.Map annotated with interface 
> a.b.c.MyMap was bound.
>
> On the other hand, it works fine if I don't specify requreBinding.  
> However, since this dependent module has no notion of the map that is 
> bound, I want to ensure that the binding is present when the dependent 
> module is created.
>

-- 
You received this message because you are subscribed to the Google Groups 
"google-guice" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to google-guice+unsubscr...@googlegroups.com.
To post to this group, send email to google-guice@googlegroups.com.
Visit this group at https://groups.google.com/group/google-guice.
To view this discussion on the web visit 
https://groups.google.com/d/msgid/google-guice/a3614d34-5997-424a-bd61-ecdc3b94bf9d%40googlegroups.com.
For more options, visit https://groups.google.com/d/optout.

Reply via email to