[cdi-dev] Accepting class type for simple (qualifier) annotations in APIs?

[Martin Kouba]

Dne 15.9.2016 v 10:15 Antoine Sabot-Durand napsal(a):
> Just a naive remark regarding Instance of annotations without members. I already used a lambda to have such an instance:
>
> BeanManager.getBeans(MyBean.class, () -> MyQualifier.class)

What is this cryptic unclear lambda thing doing actually? I know it 
compiles but I don't understand...

>
> I’m not sure there are no problem by using this short cut, but it is quite convenient.
>
> Antoine
>
>
>> Le 12 sept. 2016 à 12:28, arjan tijms <arjan.tijms at gmail.com> a écrit :
>>
>> Hi,
>>
>> Wouldn't it be convenient as the CDI API that now requires an Annotation instance in various APIs, would also accept the class type of that Annotation?
>>
>> E.g. in BeanManager there's this method:
>>
>> Set<Bean<?>> getBeans(Type beanType, Annotation... qualifiers)
>>
>> This not rarely requires one to create an AnnotationLiteral, which is not specifically difficult but a tad verbose. For qualifiers that have no (binding) attributes, a simple Class would be much easier to use.
>>
>> Thoughts?
>>
>> Kind regards,
>> Arjan Tijms
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