[bv-dev] BVAL-238 Dependency injection in ConstraintViolation

Michael Nascimento misterm at gmail.com
Wed Jan 4 04:39:13 EST 2012


In most deployment scenarios, I wouldn't expect more than one to be
available, so it should simply work. In case more than one is available, we
should probably fail with an exception.

Regards,
Michael
On 4 Jan 2012 07:16, "Emmanuel Bernard" <emmanuel at hibernate.org> wrote:

> I'm not sure I follow you exact proposal so let me rephrase and let me
> know if I am off track.
>
> You want we define a service loader
> http://docs.oracle.com/javase/6/docs/api/java/util/ServiceLoader.html to
> retrieve the expected DI solution.
>
> My concern with that is that it's a static solution. What happens if two
> service providers corresponding to this service are present? Which one to
> chose and how is the user expected to chose one or the other?
> I feel like we should keep Bean Validation's configuration away from any
> "static" approach and let people configure two ValidatorFactory completely
> independently.
>
> On 3 janv. 2012, at 21:55, Gerhard Petracek wrote:
>
> hi,
>
> i was going to suggest something similar.
>
> we could provide a simple adapter interface with a method like:
> <T> T resolveBean(Class<T> targetType)
> (and if we would like to support dependent beans, we should think about an
> additional dispose method.)
>
> the only restriction is the manual usage of methods like
> ValidatorContext#messageInterpolator.
> however, since it would be possible to configure those parts via a
> dependency injection container like cdi, it isn't a big issue.
>
> regards,
> gerhard
>
>
>
> 2012/1/3 Michael Nascimento <misterm at gmail.com>
>
>> What about a different proposal: looking up the interface implementation
>> using ServiceLoader? Then there would be nothing special about it.
>>
>> Regards,
>> Michael
>> On 3 Jan 2012 17:25, "Emmanuel Bernard" <emmanuel at hibernate.org> wrote:
>>
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>>
>>
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