[cdi-dev] [JBoss JIRA] (CDI-682) Allow unregistration of CDI beans at run time, through API

[Antoine Sabot-Durand (JIRA)]

    [ https://issues.jboss.org/browse/CDI-682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13356255#comment-13356255 ] 

Antoine Sabot-Durand commented on CDI-682:
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[~saasira] as you say, there is no technical reason to forbid registering or unregistering of Beans at runtime. We are more here on a philosophical reason: CDI was designed to create the bean graph once at boot time giving us performance and limiting runtime exception on DI to the maximum.
This ticket or CDI-114 would greatly change CDI spirit making the spec far more complicated, so the EG was not in favour of such an approach.

> Allow unregistration of CDI beans at run time, through API
> ----------------------------------------------------------
>
>                 Key: CDI-682
>                 URL: https://issues.jboss.org/browse/CDI-682
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>          Components: Beans, Events, Interceptors
>    Affects Versions: 1.2.Final
>            Reporter: Samba Siva Rao Kolusu
>
> much like the ability to register beans at runtime through API (https://issues.jboss.org/browse/CDI-114)
> also provide API 
> BeanManager::unregister("beanName"), or BeanManager::unregister(XYZBean.class) 
> to unregister beans at runtime, and corresponding events (BeforeUnregisteringBean, AfterUnregisteringBean, etc) so that interested listeners can take appropriate actions in the event of a bean getting removed from CDI context.
> these two together will help build pluggable web applications much like OSGI modules. right now, installing new beans or removing exiting beans requires restart of CDI container, if not web application. with the addition of these two features [registering beans at run time, through BeanManager::register(XYZBean.class) ], and unregistering beans at runtime [BeanManager::unregister(XYZBean.class) ]  true modularity comes to Java EE world, without the necessity to restart 



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