[jira] Commented: (CAY-1009) Bogus runtime relationships can mess up commit.

["Victor Antonovich (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/CAY-1009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12804515#action_12804515 ] 

Victor Antonovich commented on CAY-1009:
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Hmm... Is new condition `target.isSubentityOf((ObjEntity) rel.getTargetEntity())` is more general case of condition `rel.getTargetEntity() != src`? But `src` completely disappeared from new condition... Looks like checking `rel` condition for target which is subentity of this ObjRelationship target. Is it right?


> Bogus runtime relationships can mess up commit.
> -----------------------------------------------
>
>                 Key: CAY-1009
>                 URL: https://issues.apache.org/jira/browse/CAY-1009
>             Project: Cayenne
>          Issue Type: Bug
>          Components: Core Library
>    Affects Versions: 3.0
>            Reporter: Kevin Menard
>            Assignee: Kevin Menard
>             Fix For: 3.0 beta 1
>
>         Attachments: CAY-1009.patch
>
>
> I'm still the process of investigating this one, so more details to come.  Basically what I'm seeing is that if two ObjRels map to the same DbRel somehow and only one is mapped explicitly, the runtime one can fail validation while the specified one passes.  I'm observing this in a relationship that involves inheritance.  It looks like I've explicitly mapped an ObjRel for the subclass type and Cayenne is creating one for the base class.  The DbAttr is marked as required.  Since I never specify a value in the runtime relationship, since it's not mapped or useful to me, validation fails.  If I don't mark the attribute as mandatory, everything commits just fine.  So, I suspect Cayenne resolves the conflict somewhere down the line.

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