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javacdijava-ee-7weld

Does EJB 3.2 / CDI have an equivalent of Spring 4 Meta annotations?

Does somebody know how to create a "shortcut" for a couple of annotations in CDI?

You know, something called meta-annotations in Spring world:

@Singleton
@Transactional(value = TxType.REQUIRED, dontRollbackOn = SomeException.class)
@SomeOtherAnnotations
public @interface MyService {
    // ...
}

@MyService
public class OrderService {
  // ...
}

The goal is obvious: just to don't have to specify the same setup in every class. As far as I know, it's not possible in CDI, but does somebody know if EJB 3.2 supports something similar?

Solution

  • CDI has the concept of stereotypes that you can use in your example:

    @Singleton
@Transactional(value = TxType.REQUIRED, dontRollbackOn = SomeException.class)
@SomeOtherAnnotations
@Stereotype
@Target(TYPE)
@Retention(RUNTIME)
public @interface MyService {}