[cdi-dev] [JBoss JIRA] (CDI-129) Clarify behaviour of @ApplicationScoped in EARs

Mark Struberg (JIRA) jira-events at lists.jboss.org
Wed Oct 24 02:11:02 EDT 2012


    [ https://issues.jboss.org/browse/CDI-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728744#comment-12728744 ] 

Mark Struberg commented on CDI-129:
-----------------------------------

Stu, it seems that large potions of the behaviour you described are already standard in all existing EE-6 container I tested with a small test app: https://github.com/struberg/cdi_eartest
It contains an @ApplicationScoped MailService which injects a @Specialized bean from a webapp. If you get "Yea, we are AdminUser!" on the landing page, then Jozefs 'horizontal' (EJB like) interpretation of the visibility rules is not implemented in a single certified EE container on the market but the rather 'vertical' approach is! Please review and test yourself.
                
> Clarify behaviour of @ApplicationScoped in EARs
> -----------------------------------------------
>
>                 Key: CDI-129
>                 URL: https://issues.jboss.org/browse/CDI-129
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>          Components: Contexts
>    Affects Versions: 1.0
>            Reporter: Mark Struberg
>            Assignee: Pete Muir
>             Fix For: 1.1 (Proposed)
>
>
> Since @ApplicationScoped currently is defined in 6.5.2 as to be 'like in the Servlet specification' this means that you will get a new instance for every WebApplication (WAR file).
> There is currently no specified CDI scope for providing a single shared instance for a whole EAR.
> We could (ab-)use @Singleton for that, but this is currently not well defined at all.
> Alternatively we could introduce an own new annotation like @EnterpriseScoped or likes. 

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