[cdi-dev] [JBoss JIRA] (CDI-43) Allow Extensions to specify the annotations that they are interested in

[Pete Muir (JIRA)]

    [ https://issues.jboss.org/browse/CDI-43?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12712294#comment-12712294 ] 

Pete Muir commented on CDI-43:
------------------------------

The proposal is that this should be a class level annotation, possibly called @HandlesTypes to match Servlet.
                
> Allow Extensions to specify the annotations that they are interested in
> -----------------------------------------------------------------------
>
>                 Key: CDI-43
>                 URL: https://issues.jboss.org/browse/CDI-43
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>          Components: Portable Extensions
>    Affects Versions: 1.0
>            Reporter: Stuart Douglas
>             Fix For: 1.1 (Proposed)
>
>
> Currently portable extensions that wish to look for a specific annotation have to look through all availible classes in the ProcessAnnotatatedType event, which is quite inefficient. It would be good if extensions could do something like:
> public void processAnnotatedType(@Observes @RequireAnnotations({@Unwraps.class}) ProcessAnnotatedType pat) 
> This could allow the container to take advantage of annotation indexing to improve boot time performance, as well as reducing uneeded processing in the observer.

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