[weld-dev] JPA injection points validations

[Robert Marcano]

I haven't found a way to override Weld detection of the @Persistence* 
annotations, or add a new one, I may be wrong but probably Wildfly just 
doesn't delegate to Weld for @Persistence*

On 01/22/2015 10:52 AM, Jozef Hartinger wrote:
> Validation *is* done by *InjectionServices. However, the
> JpaInjectionServices SPI is built with the following assumption of types:
>
> @PersistenceContext -> EntityManager
> @PersistenceUnit -> EntityManagerFactory
>
> which seems as a reasonable assumption given that e.g.
> @PersistenceContext Javadoc says that:
>
> "Expresses a dependency on a container-managed *EntityManager*"
>
> All the other validation is left for the service implementation. For the
> other *InjectionServices, no validation (even the type) is performed by
> Weld.
>
> HTH,
>
> Jozef
>
> On 01/22/2015 02:35 PM, Robert Marcano wrote:
>> I have noticed that all *InjectionServices javadoc say that those
>> implementations should do the required injection point validations. for
>> example JpaInjectionServices
>>
>> "Register a persistence context injection point. The implementation
>> validates the injection point ..."
>>
>> But for some reason if a JpaInjectionServices implementation is
>> registered, an internal validation is triggered
>>
>> "WELD-001517: The type of the resource producer field
>> [[BackedAnnotatedField] @PersistenceContext private
>> com.example.TestBean.session] does not match the resource type interface
>> javax.persistence.EntityManager" See [1]
>>
>> This field class is an Hibernate session, Wildfly support injecting that
>> using @PersistentContext [2], but this validations is blocking me to do
>> the same in a mock test environment I am coding. I am not sure how
>> Wildfly inject it with Weld or if they skip Weld injecting JPA instances
>> because of this. Why this validation is harcoded on Weld, when for
>> example EjbInjectionServices doesn't force any predefined validation?
>>
>> Shouldn't it be removed and leave that validation to the
>> JpaInjectionServices implementation as the javadoc say it is its
>> responsibility?.
>>
>>
>> [1]
>> https://github.com/weld/core/blob/master/impl/src/main/java/org/jboss/weld/injection/ResourceInjectionFactory.java#L306
>>
>> [2]
>> https://docs.jboss.org/author/display/WFLY8/JPA+Reference+Guide#JPAReferenceGuide-InjectionofHibernateSessionandSessionFactoryInjectionofHibernateSessionandSessionFactory
>>
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>