Inheritance with JAX-RS

Question

I am using JAX-RS for my web services. I have common functionality and would like to use inheritance. I am providing simple CRUD operations. I have defined an i

Answer 1

What you've described above looks good. Here are the rules for JAX-RS inheritance which based on what you've provided you are adhering.

From JAX-RS spec §3.6:

JAX-RS annotations MAY be used on the methods and method parameters of a super-class or an implemented interface. Such annotations are inherited by a corresponding sub-class or implementation class method provided that method and its parameters do not have any JAX-RS annotations of its own. Annotations on a super-class take precedence over those on an implemented interface. If a subclass or implementation method has any JAX-RS annotations then all of the annotations on the super class or interface method are ignored. E.g.:

public interface ReadOnlyAtomFeed {
    @GET @Produces("application/atom+xml")
    Feed getFeed();
}

@Path("feed")
public class ActivityLog implements ReadOnlyAtomFeed {
    public Feed getFeed() {...}
}

In the above, ActivityLog.getFeed inherits the @GET and @Produces annotations from the interface. Conversely:

@Path("feed")
public class ActivityLog implements ReadOnlyAtomFeed {
    @Produces("application/atom+xml")
    public Feed getFeed() {...}
}

In the above, the @GET annotation on ReadOnlyAtomFeed.getFeed is not inherited by ActivityLog .getFeed