[cdi-dev] [JBoss JIRA] (CDI-232) Relax requirements for built-in Instance

Thu Aug 16 08:10:14 EDT 2012

    [ https://issues.jboss.org/browse/CDI-232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12711971#comment-12711971 ] 

Jozef Hartinger edited comment on CDI-232 at 8/16/12 8:08 AM:
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I doubt there is an implementation that would be following this. What can be implied from the spec is that if you obtain the Bean<?> object for the built-in Instance bean and call Bean.getTypes() you should get huge set of Instance<X> and Provider<X> where X is every possible Java type that matches "2.2.1. Legal bean types".

I think that this would not even be a finite set most of the time so typesafe resolution cannot clearly work this way for the Instance bean.

      was (Author: jharting):
    I doubt there is an implementation that would be following this. What can be implied from the spec says is that if you obtain the Bean<?> object for the built-in Instance bean and call Bean.getTypes() you should get huge set of Instance<X> and Provider<X> where X is every possible Java type that matches "2.2.1. Legal bean types".

I think that this would not even be a finite set most of the time so typesafe resolution cannot clearly work this way for the Instance bean.

> Relax requirements for built-in Instance
> ----------------------------------------
>
>                 Key: CDI-232
>                 URL: https://issues.jboss.org/browse/CDI-232
>             Project: CDI Specification Issues
>          Issue Type: Clarification
>    Affects Versions: 1.1.EDR1
>            Reporter: Martin Kouba
>             Fix For: TBD
>
>
> 5.6.2. The built-in Instance
> {quote}
> The container must provide a built-in bean with:
> * Instance<X> and Provider<X> for every legal bean type X in its set of bean types,
> * every qualifier type in its set of qualifier types,
> {quote}
> This type/qualifier requirements seem to be too strict. Maybe we should omit these and instead force implementation to satisfy every injection point for every legal bean type and corresponding qualifiers found in application... or something like that. I'm not sure about the wording.
> By the way Weld (2.0.0.Alpha2) does not fulfil these requirements at the moment.

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