[jira] [Updated] (ISIS-834) Ensure that only a single implementation of a DomainService is registered.

["Jeroen van der Wal (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/ISIS-834?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jeroen van der Wal updated ISIS-834:
------------------------------------
    Fix Version/s:     (was: core-1.7.0)
                   core-2.0.0

> Ensure that only a single implementation of a DomainService is registered.
> --------------------------------------------------------------------------
>
>                 Key: ISIS-834
>                 URL: https://issues.apache.org/jira/browse/ISIS-834
>             Project: Isis
>          Issue Type: Improvement
>          Components: Core
>    Affects Versions: core-1.5.0
>            Reporter: Dan Haywood
>            Assignee: Dan Haywood
>            Priority: Minor
>             Fix For: core-2.0.0
>
>
> Two complications:
> - ExceptionRecognizers require multiple implementations (are chained together)
> - for each implementation we identify all the types it implements, so the check isn't a simple 1:1 map (at the limit all implementations extend java.lang.Object).  Therefore need to take into account the set of injection points that the services are injected into.



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