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From "Nikita Timofeev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CAY-2282) Various Update Issues With Vertical Inheritance
Date Tue, 18 Apr 2017 08:19:41 GMT

    [ https://issues.apache.org/jira/browse/CAY-2282?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15972311#comment-15972311
] 

Nikita Timofeev commented on CAY-2282:
--------------------------------------

Hi Matt,

Thanks again for finding this tricky issues with inheritance, I'm going after the first part.

> Various Update Issues With Vertical Inheritance
> -----------------------------------------------
>
>                 Key: CAY-2282
>                 URL: https://issues.apache.org/jira/browse/CAY-2282
>             Project: Cayenne
>          Issue Type: Bug
>          Components: Core Library
>    Affects Versions: 4.0.M5
>            Reporter: Matt Watson
>            Assignee: Nikita Timofeev
>              Labels: inheritance, lock, optimistic, relationship, update, vertical
>         Attachments: breaking_test.patch
>
>
> The two tests in the attached "breaking-test" patch show the two scenarios that are broken.
> 1) {{testUpdateTwoObjectsWithMultipleAttributeAndMultipleRelationship}} : breaks because
of the relationship change. Without changing relationship the update actually works fine.
But with the relationship change its going through {{DataDomainIndirectDiffBuilder.arcDeleted}}
and {{DataDomainIndirectDiffBuilder.arcCreated}} thus creating flattened Insert and Delete
statements instead of an UPDATE statement.
> 2) {{testUpdateWithOptimisticLocks}} : breaks because the vertically inherited ObjEntity
has an attribute using Optimistic Lock for a field that is actually on the parent DbEntitity,
and the Update query that is built is incorrectly referencing the column on the wrong table
for the {{qualifierExpression}}.
> I actually already have a fix ready for this 2nd issue, but want to get both of these
issues fixed in this ticket, so anyone helping on this issue please focus on fixing the first
test.



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