[cdi-dev] [JBoss JIRA] (CDI-515) Allow to obtain Bean metadata from javax.enterprise.inject.Instance

[Martin Kouba (JIRA)]

    [ https://issues.jboss.org/browse/CDI-515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13158110#comment-13158110 ] 

Martin Kouba commented on CDI-515:
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That would be way more complicated if possible at all. Let's assume you have two producers for dependent {{Foo}} and each specifies a different qualifer. Then you inject {{Instance<Foo>}} and select Instance for qualifier {{@A}} and get instance of Foo, and select Instance for qualifier {{@B}} and get instance of Foo. How would you differentiate these instances? What happens if you pass Foo {{@B}} reference to the Instance for Foo {{@A}}? You would have to track all the instances provied by each Instance.

> Allow to obtain Bean metadata from javax.enterprise.inject.Instance
> -------------------------------------------------------------------
>
>                 Key: CDI-515
>                 URL: https://issues.jboss.org/browse/CDI-515
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>    Affects Versions: 1.2.Final
>            Reporter: Martin Kouba
>            Assignee: Martin Kouba
>             Fix For: 2.0 (proposed)
>
>
> Sometimes it might be useful to obtain Bean metadata from the {{javax.enterprise.inject.Instance}} (similarly as 5.5.8. Bean metadata). The method could be named {{getBean()}} and should have similar restrictions like {{get()}} (e.g. throw {{UnsatisfiedResolutionException}} if appropriate).



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