[cdi-dev] Support DI within BV constant validators

Gunnar Morling gunnar at hibernate.org
Sun Aug 5 17:11:52 EDT 2012


Hi Pete,

In the BV 1.1 early draft we're currently saying the following [1]:

===
Java EE should [...] enable Context and Dependency Injection (CDI)
support to ValidatorFactory instances. In particular:

1) Let Validator and ValidatorFactory object be injectable.
2) Use a default ConstraintValidatorFactory implementation that
returns CDI managed ConstraintValidator objects. The scope of these
instances is dependent as the Bean Validation provider is responsible
for them.
3) Provide CDI managed instances of ConstraintValidatorFactory,
MessageInterpolator and TraversableResolver if customized classes are
requested in the XML deployment descriptor.
===

I think that's pretty much in line with what you're saying.

What caught my attention was section 3.7 of the CDI spec which
mentions built-in beans for Validator and ValidatorFactory to be
provided by an EE container. So this covers 1) from above, but not the
others.

I'm wondering now whether 2) and 3) should be mentioned there as well
or whether the entire section should be moved to the Java EE spec (I
think that's what you're saying?).

--Gunnar

[1] http://beanvalidation.org/1.1/spec/#d0e6698


2012/8/2 Pete Muir <pmuir at redhat.com>:
> Hi Emmanuel, Gunnar,
>
> Gunnar filed https://issues.jboss.org/browse/CDI-241 however I don't think we should reference this in the CDI spec. Instead, Bean Validation should declare which of it's classes should be "Java EE component classes", which then makes them eligible for injection by CDI. These types are also referenced by the Java EE spec IIRC. ccing Linda and Bill, as this relates to how we define what receives CDI injections going forward, as I'm not sure they want to continue with this method.
>
> Pete



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