[jira] [Updated] (CAY-2855) Vertical Inheritance: Fix Disjoint By Id Prefetch On Sub-Entity

["Nikita Timofeev (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/CAY-2855?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Nikita Timofeev updated CAY-2855:
---------------------------------
    Fix Version/s: 4.2.2
                   5.0-M1

> Vertical Inheritance: Fix Disjoint By Id Prefetch On Sub-Entity
> ---------------------------------------------------------------
>
>                 Key: CAY-2855
>                 URL: https://issues.apache.org/jira/browse/CAY-2855
>             Project: Cayenne
>          Issue Type: Bug
>    Affects Versions: 4.2
>            Reporter: Jadon Hansell
>            Assignee: Nikita Timofeev
>            Priority: Major
>             Fix For: 4.2.2, 5.0-M1
>
>         Attachments: disjoint-by-id-issue.patch
>
>
> I ran into an issue with prefetching a belongs-to relationship whose target was the sub-entity of a vertical inheritance scenario. When {{disjointById}} is used, the select for the sub-entity looks for an ID of {{null}} instead of the actual ID assigned to the relationship.
> For example, lets say I have a base entity {{Base}}, a vertically inherited sub-entity {{Impl}}, and a separate entity called {{Other}}.
> If {{Other}} has a belongs-to relationship to {{Impl}} called  {{Other.impl}}, attempting to use a {{disjointById}} prefetch on that relationship will always find no results.



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