Re: requireBinding for a BindingAnotation possible?

[Steve Storck]

Thank you, Thomas.  That worked well and immediately.

On Monday, September 19, 2016 at 9:29:50 AM UTC-4, Thomas Broyer wrote:
>
> You need to require the Map, not the raw Map class.
>
>  requireBinding(Key.get(new TypeLiteral>(){}, 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 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
>> }
>> }
>>
>> 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.
>>
>

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Re: requireBinding for a BindingAnotation possible?

[Thomas Broyer]

You need to require the Map, not the raw Map class.

 requireBinding(Key.get(new TypeLiteral>(){}, 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 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
> }
> }
>
> 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.
>

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