[cdi-dev] [JBoss JIRA] (CDI-331) Instance.iterator() shouldn't include non-alternatives that haven't been replaced

Antoine Sabot-Durand (JIRA) issues at jboss.org
Mon Mar 17 07:38:11 EDT 2014

     [ https://issues.jboss.org/browse/CDI-331?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Antoine Sabot-Durand updated CDI-331:

    Labels: CDI_spec_chge CDI_tck_chge  (was: )

> Instance.iterator() shouldn't include non-alternatives that haven't been replaced
> ---------------------------------------------------------------------------------
>                 Key: CDI-331
>                 URL: https://issues.jboss.org/browse/CDI-331
>             Project: CDI Specification Issues
>          Issue Type: Feature Request
>          Components: Resolution
>    Affects Versions: 1.1.PRD
>            Reporter: Jozef Hartinger
>            Assignee: Pete Muir
>              Labels: CDI_spec_chge, CDI_tck_chge
>             Fix For: 1.2 Proposed
> The specification currently says that:
> {quote}
> The iterator() method must:
> • Identify the set of beans that have the required type and required qualifiers and are eligible for injection into the class into
> which the parent Instance was injected, according to the rules of typesafe resolution, as defined in Section 5.2.1.
> {quote}
> The ambiguity resolution algorithm as defined in 5.2.2 should be applied.
> This is explicitly required for get() but is not required for iterator(). This causes the following inconsistency:
> Assume two classes Foo and Bar which both implement common interface Common. Bar is an enabled alternative.
> Assume further the following 
> {noformat}
> @Inject @Any Instance<Common> instance
> {noformat}
> injection point.
> It is clear that instance.get() returns Bar.
> It is however not clear whether instance.iterator() iterates over:
> a) Bar
> b) Foo, Bar
> and whether instance.isAmbiguous() returns:
> a) true
> b) false

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