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

[Samba Kolusu (JIRA)]

    [ https://issues.jboss.org/browse/CDI-682?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13356885#comment-13356885 ] 

Samba Kolusu commented on CDI-682:
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another argument in support of registering & unregistering beans, interceptors, decorators, producers etc at runtime could be "micro-services" - each module (with cdi beans & interceptors, injection-points, etc) being deployed & undeployed (or installed & uninstalled) at run time - each module providing a subset of the functionality that a monolithic web application provides in entirety. 

isn't microservices the hot topic that is being targeted for javaee 8? 

> 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 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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