JSR-303 dependency injection and Hibernate

Question

Spring 3.0.2, Hibernate 3.5.0, Hibernate-Validator 4.0.2.GA

I am trying to inject Spring dependencies into a ConstraintValidator using:

@PersistenceC         


        

Answer 1

It seems that in JPA2, the persistence provider's validation mechanism kicks in by default on pre-persist, pre-update, etc.

It uses its own mechanism for constructing validators, Spring doesn't get involved.

The only solution I can see at the moment is disabling the out-of-the-box JPA2 validation in persistence.xml:

  org.hibernate.ejb.HibernatePersistence
    
      
      
    
  NONE

Then use Spring's LocalValidatiorFactoryBean as usual. You'll then have to call the validators manually as in the pre-JPA2 world.

UPDATE:

Just to make it complete, another solution would be to specify a constraint-validator-factory in META-INF/validation.xml.

It would be very nice if this could be Spring's SpringConstraintValidatorFactory but unfortunately, it requires an AutowireCapableBeanFactory to be passed into its constructor, but a class with no-arg constructor is expected here by JPA2.

Which leaves the option of creating own implementation of ConstraintValidatorFactory that pulls validators out of Spring, but I don't see any clean way of doing that.