I think this is very problematic as you will get AmbiguousResolutionException all the time once we introduce this inheritance.

Many thanks,
Emily
===========================
Emily Jiang
WebSphere Application Server, CDI Development Lead

 
MP 211, DE3A20, Winchester, Hampshire, England, SO21 2JN
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Email: emijiang@uk.ibm.com
Lotus Notes: Emily Jiang/UK/IBM@IBMGB




From:        John Ament <john.ament@spartasystems.com>
To:        cdi-dev <cdi-dev@lists.jboss.org>
Date:        11/09/2016 20:04
Subject:        [cdi-dev] Should javax.enterprise.inject.Produces be inherited?
Sent by:        cdi-dev-bounces@lists.jboss.org




All,

I was just thinking about alternatives and producer methods.  Suppose I have the following bean:

@ApplicationScoped
public class Boop {

    @Produces
    @ApplicationScoped
    public Simpler makeSimpler() {
        return new Simpler("Boop");
    }
}

If I want to override the producer method, I need to declare fully:

@Alternative
@Priority(100)
@ApplicationScoped
public class BoopAlternative extends Boop{
    @Override
    @Produces
    public Simpler makeSimpler() {
        return new Simpler("Boop2");
    }
}

For some reason, scopes are inherited, but the produces annotation is not.  At least in the case of a producer method, it seems like it would be useful for @Produces to be inherited as well.

John


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