Posted under CDI
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Tags CDI, Gotcha, Tip
When a service layer EJB method is called locally from within the same class, any CDI interceptors on the method are not invoked. This is standard CDI behaviour, as interceptors are only designed to be called when a method is called from an external client.
I hit this issue when my OptimisticLockInterceptor (which converts OptimisticLockException to ChangeCollisionException) was not being called, and OptimisticLockExceptions where being propagated all the way up to the view layer - Mantis issue 120 details this.
The solution to this is to ensure that any required interceptors are annotated on methods at the point of call from an external client. If they then call another EJB method locally, any interceptors on the second method will not be called, but this is not a problem if the first method is correctly annotated. If the second method is also used externally, then its interceptors will be correctly invoked.
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