[cdi-dev] [JBoss JIRA] (CDI-561) Add the possibility to unmanage a bean instance
Martin Kouba (JIRA)
issues at jboss.org
Thu Sep 17 04:53:00 EDT 2015
[ https://issues.jboss.org/browse/CDI-561?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13109806#comment-13109806 ]
Martin Kouba commented on CDI-561:
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bq. Being able to capture an instance state to use its information outside CDI or as an event payload...
I think this should be the responsibility of a user and not a CDI container. AFAIK there's no reliable way to do this automatically.
> Add the possibility to unmanage a bean instance
> -----------------------------------------------
>
> Key: CDI-561
> URL: https://issues.jboss.org/browse/CDI-561
> Project: CDI Specification Issues
> Issue Type: Feature Request
> Components: Beans
> Affects Versions: 1.2.Final, 1.1.Final, 2.0-EDR1
> Reporter: Antoine Sabot-Durand
> Fix For: 2.0 (discussion)
>
>
> CDI implementations make heavy uses of proxies to support normal scope and interceptor decorators. There are use case where being able to have a bean instance without its proxy could be useful
> * Accessing the true class of the instance in a clean way
> * Being able to capture an instance state to use its information outside CDI or as an event payload
> The limitation we have on Async event is probably a good example. As we don't propagate active normal context at firing time, it's not possible to inject a bean with such a scope (except {{@ApplicationScoped}} since Application context is shared), it could be useful to give the possibility to copy such a bean instance to a standard pojo instance so it could be used as event payload for instance.
> We could even imagine that the mechanism could be transparently activated if an asynchronous observer inject a {{@RequestScoped}} or {{@SessionScoped}} bean.
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