[ http://issues.apache.org/jira/browse/BEEHIVE-257?page=history ]
Kyle Marvin reassigned BEEHIVE-257:
-----------------------------------
Assign To: Kyle Marvin (was: Kenneth Tam)
I'm going to take this on, I have a fix
> control inheritance: annotation on a jcx not inherited correctly
> ----------------------------------------------------------------
>
> Key: BEEHIVE-257
> URL: http://issues.apache.org/jira/browse/BEEHIVE-257
> Project: Beehive
> Type: Bug
> Components: Controls
> Versions: V1Beta
> Reporter: James Song
> Assignee: Kyle Marvin
> Fix For: V1Beta
>
> This is reported by David Read, and might blocks OAM developments.
> The inheritance hirachey:
> The JCX hierarchy looks like:
> =====================
> TopLevelJcx extends InheritanceTest
> ^
> FirstLevelJcx extends TopLevelJcx
> ^
> SecondLevelJcx extends FirstLevelJcx
> The annotation:
> @PropertySet(externalConfig = true)
> @Retention(RetentionPolicy.RUNTIME)
> @Inherited
> public @interface MyAnnotation
> {
> String value() default "DEFAULT";
> }
> The annotation exists on TopLevelJcx and on SecondLevelJcx, but not in the
> "middle" (FirstLevelJcx). The "client side is a JPF that has two fields for
> each type ... one with no annotation on the field and one with an annotation
> on the field.
>
> I see the field overrides working and the override where there is an
> annotation on the JCX (SecondLevelJcx). It's the one in the middle that
> seems busted. What's odd is that the value that is returned from the context
> is the default value for the property. I would have expected a null value
> for the annotation itself. It's like it's stuck half way between being there
> and not being there.
>
> Ken's comment on this:
> "I thought this might have been done as part of the general "support
> inheritance" work, but looking at the code I can believe it doesn't work :).
>
> Dave, what's your example look like from the client access perspective? Ie,
> how are you attempting to get the inherited annotation?
>
> Seems like the right place to do this is in
> AnnotatedElementMap.getProperty(), where today we just call getAnnotation()
> on the java.lang.reflect.AnnotatedElement (which, per docs, will not walk up
> the interface tree), we need to manually do a breadth-first walk up."
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