thanks for the answer. To make it works I create a Factory class and I
create the map instance using it, so then is guice which is creating the
instance therefore I can filter it already.
install(new FactoryModuleBuilder().build(MapFactory.Factory.class));
public static class MapFactory<K, V> extends HashMap<String, String> {
public interface Factory {
MapFactory <String, String> create();
}
}
MapFactory.Factory mapFactory
Map<String, String> map =mapFactory.create();
What do you think?. Do you know if there´s a better or standard way to do
it?
Regards.
El sábado, 23 de abril de 2016, 23:46:48 (UTC+1), scl escribió:
>
> Yes. Guice can only provide the filter if guice created the instance. It
> does not work for instances created by your own code or for instances
> created by providers you have written.
>
> Am 24. April 2016 00:30:47 MESZ, schrieb Pablo perez <[email protected]
> <javascript:>>:
>>
>> So, If I understand what you said, Guice can only provide in the filter
>> those instance created by itself, like through @injected or created through
>> Factories.
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>> El sábado, 23 de abril de 2016, 21:52:59 (UTC+1), scl escribió:
>>>
>>> You canot intercept methods on instances created by a provider. What
>>> guice does is to create a subclass of the thing you want to to intercept.
>>> But when you use a provider to create this object you are calling new
>>> yourself which makes it impossible for guice to sneak in the subclass.
>>>
>>> Therefore interception of methods only works on instances created by
>>> guice (there is no 'new' in your code)
>>>
>>> Am 23. April 2016 19:44:05 MESZ, schrieb Pablo perez <[email protected]
>>> >:
>>>>
>>>> I´m using Guice TypeListener to intercept a map instance generated by a
>>>> provider.
>>>>
>>>> Here the config method where I bind my listener
>>>>
>>>> @Overridepublic void addConfig() {
>>>> MapListener mapListener = new MapListener();
>>>> requestInjection(mapListener);
>>>> bindListener(Matchers.any(), mapListener);}
>>>>
>>>> This is the map instance created by this provider
>>>>
>>>> @Provides
>>>> Map<String, String> mapTest(){
>>>> return new HashMap<>();
>>>> }
>>>>
>>>> This is the listener class to detect the map instance
>>>>
>>>> public class MapListener implements TypeListener {
>>>>
>>>> @Override
>>>> public <I> void hear(final TypeLiteral<I> typeLiteral,
>>>> TypeEncounter<I> typeEncounter) {
>>>> typeEncounter.register((InjectionListener<I>) i -> {
>>>> if(i.getClass().isAssignableFrom(Map.class)){
>>>> System.out.println("DI:"+ i.getClass()
>>>> .getName());
>>>> //TODO:Logic to modify map
>>>> }
>>>> });
>>>> }}
>>>>
>>>> The problem is the Map is never passed to the hear method. Am I doing
>>>> something wrong?
>>>>
>>>> Regards.
>>>>
>>>>
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