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From "Andrus Adamchik (JIRA)" <...@cayenne.apache.org>
Subject [jira] Commented: (CAY-795) Horizontal inheritance
Date Mon, 29 Sep 2008 11:52:12 GMT

    [ https://issues.apache.org/cayenne/browse/CAY-795?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13125#action_13125
] 

Andrus Adamchik commented on CAY-795:
-------------------------------------

I applied the last Dzmitry's patch with only cosmetic changes. Now we need to address a few
modeler issues with overriden attributes, before moving to runtime implementation.

> Horizontal inheritance
> ----------------------
>
>                 Key: CAY-795
>                 URL: https://issues.apache.org/cayenne/browse/CAY-795
>             Project: Cayenne
>          Issue Type: New Feature
>          Components: Cayenne Core Library
>    Affects Versions: 3.0
>            Reporter: Ari Maniatis
>            Assignee: Ari Maniatis
>             Fix For: 3.0
>
>         Attachments: inheritance-progress.diff, Overriding_attributes.patch
>
>
> Implement horizontal inheritance. This requires:
> 1. Allow dbEntityName attribute to be null in <obj-entity ...>
> 2. Modeler changes to allow this to be set. Validation should require that any class
set in this way should have at least one subclass.
> 3. Changes, particularly to SelectQuery, which accomodates this change and returns the
appropriate objEntities.

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