[cdi-dev] [JBoss JIRA] (CDI-625) When exactly are events with @Initialized(X.class) and @Destroyed(X.class) qualifiers fired

Martin Kouba (JIRA) issues at jboss.org
Mon Sep 12 03:15:02 EDT 2016


    [ https://issues.jboss.org/browse/CDI-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291589#comment-13291589 ] 

Martin Kouba commented on CDI-625:
----------------------------------

bq.  ...it is always possible to use predestroy merging them in a bean...
Not really. If you have application scoped Bean1 and Bean2 you cannot simply create Bean3 and destoy them there... in other words, this "merging" is not always possible.

bq. is beforeshutdown defined in this shutdown lifecycle?
{{BeforeShutdown}} is a container lifecycle event and is fired after all contexts are destroyed.

> When exactly are events with @Initialized(X.class) and @Destroyed(X.class) qualifiers fired
> -------------------------------------------------------------------------------------------
>
>                 Key: CDI-625
>                 URL: https://issues.jboss.org/browse/CDI-625
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>          Components: Events
>            Reporter: Martin Kouba
>              Labels: F2F2016
>             Fix For: 2.0 (proposed)
>
>
> The spec states that {{@Initialized(X.class)}} is fired when a context is initialized and {{@Destroyed(X.class)}} when a context is destroyed (note that for {{@ApplicationScoped}} the wording leaves out the context: _"when the application is destroyed"_). 
> Does it mean that:
> * {{@Initialized(X.class)}} is fired *after the initialization* of a context is finished, i.e. the context is ready?
> * {{@Destroyed(X.class)}} is fired *after the destruction* of a context is finished, i.e. after all the beans are destroyed?
> I'm asking because for {{@Destroyed(X.class)}} it might be useful to perform some cleanup before the context is actually destroyed - see also CDI-601.
> In RI/Weld, the behaivour of {{@Destroyed(ApplicationScoped.class)}} is currently a little bit inconsistent. For webapps and Weld SE, the event is fired before the context is destroyed. But for non-web EE modules (e.g. ejb jar) the event is fired after the context is destroyed.
> I believe this should be more clear.



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