[cdi-dev] [JBoss JIRA] (CDI-601) Add container lifecycle event fired before container destroys all contexts

[Martin Kouba (JIRA)]

    [ https://issues.jboss.org/browse/CDI-601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13283230#comment-13283230 ] 

Martin Kouba commented on CDI-601:
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To sum it up, right now if we have an {{@ApplicationScoped}} bean and want to perform some cleanup before it's destroyed:
* use {{@PreDestroy}} callback - this can only be used to perfom "local" cleanup as we should NOT call other {{@ApplicationScoped}} beans from within the callback (the ordering of destruction is not defined)
*  observe {{@Destroyed(ApplicationScoped.class)}} which should be fired _"when the application is destroyed"_; but this could be tricky - see also CDI-625

I believe we should either clarify that {{@Destroyed(X.class)}} is fired before the context is destroyed (CDI-625) or introduce a new regular event {{ApplicationStopped}} when an application is stopped, before the container destroys all contexts.


> Add container lifecycle event fired before container destroys all contexts
> --------------------------------------------------------------------------
>
>                 Key: CDI-601
>                 URL: https://issues.jboss.org/browse/CDI-601
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>            Reporter: Martin Kouba
>             Fix For: 2.0 (discussion)
>
>
> The name might be something like {{BeforeContainerShutdown}}. Note that we probably cannot change the name or semantics of {{BeforeShutdown}}, which is fired after container destroys all contexts. The motivation is to allow the beans to perform some kind of cleanup before dependencies could be disposed (the ordering of destruction is not defined).



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