[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
Fri Sep 9 09:48:01 EDT 2016


    [ https://issues.jboss.org/browse/CDI-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13291226#comment-13291226 ] 

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

How about extending {{@Destroyed}}?
{code:java}
public @interface Destroyed {
    Class<? extends Annotation> value();
    boolean beforePhase() default false;   
}
class Test {
    void observeAfter(@Observes @Destroyed(ApplicationScoped.class) Object object) {
    }
    void observeBefore(@Observes @Destroyed(value = ApplicationScoped.class, beforePhase = true) Object object) {
    }
}
{code}


> 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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