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

Mark Struberg (JIRA) jira-events at lists.jboss.org
Fri Oct 19 02:28:01 EDT 2012

    [ https://issues.jboss.org/browse/CDI-129?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727899#comment-12727899 ] 

Mark Struberg commented on CDI-129:

For my side I have a pretty clear opinion:
We have 3 options as listed above, and the one which makes users get different contextual instances depending on where the injection into gets made is an absolute no-go.

So 2 Options remain (and I will not argue about which one is in the spec, because BOTH are covered + contradicted in CDI 1.0)


* restrict @Specializes and @Alternative to all non Object.class CDI-Bean Types to the outermost module

* go with semi-static wiring IF needed. Again: this is NOT needed if we do not inject into a bean which is of a broader scope than 1 per webapp! By clarifying that @ApplicationScoped is 1 per WAR we could use fully static wiring for all CDI beans!

> 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. 

This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira

More information about the cdi-dev mailing list