[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)
either
* 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.
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