[cdi-dev] [JBoss JIRA] (CDI-420) add a bean-discovery-mode 'scoped'

Emily Jiang (JIRA) issues at jboss.org
Thu Jun 9 05:25:00 EDT 2016


    [ https://issues.jboss.org/browse/CDI-420?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13250097#comment-13250097 ] 

Emily Jiang commented on CDI-420:
---------------------------------

I had a further thought on this:
We could introduce 'include'.

{code:java}
<beans xmlns="http://xmlns.jcp.org/xml/ns/javaee" bean-discovery-mode="annotated">
   <!-- These filters are applied before type discovery -->
  <scan>
    <include name="my.packages.no.beans.*" />
  </scan>
 </beans>
{code}
This will cause the classes to be scanned and opted in for type discovery. It is similar to Martin's approach. Is this easier to be understood? just my 2cents.

> add a bean-discovery-mode 'scoped'
> ----------------------------------
>
>                 Key: CDI-420
>                 URL: https://issues.jboss.org/browse/CDI-420
>             Project: CDI Specification Issues
>          Issue Type: Bug
>          Components: Packaging and Deployment
>    Affects Versions: TBD
>            Reporter: Mark Struberg
>             Fix For: 2.0 (discussion)
>
>
> This is for some future CDI release.
> We currently only have 3 bean-discovery-modes
> * none
> * all
> * annotated
> The spec also currently says that ProcessAnnotatedType will only get fired (12.4) for 
> • each Java class, interface or enum deployed in an explicit bean archive, and 
> • each Java class with a bean defining annotation in an implicit bean archive. 
> • each session bean
> Which means that we do not get the ProcessAnnotatedType (PAT) event for any class in an 'annotated' or 'implicit' BDA which does _not_ have a bean defining annotation. 
> It might be useful to fire the ProcessAnnotatedType for all classes, but do not pick them up as Beans if they (after PAT) do not have a valid scope. Effectively doing the processing but not make them @Dependent automatically if there is no scope annotation at the end of the PAT processing.
> I'm not yet 100% sure how important this distinction is in practice. Just writing this up to not forget about the idea...



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