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

Emmanuel Bernard emmanuel at hibernate.org
Wed Jan 4 04:15:49 EST 2012


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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