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https://issues.apache.org/jira/browse/OPENJPA-1200?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12863829#action_12863829
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Pinaki Poddar commented on OPENJPA-1200:
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Not sure of this option or even the original cause as 'error'. The domain model
presented where Book and Movie both can have many Artists. And hence an Artist
can be related to both Movies and Books. Thus Artist.getBooks() to return only
books is the appropriate scenario for ElementClassCriteria (in fact if my
memory serves me right, that is the exact reason to demonstrate the advanced
capabilities of OpenJPA that domain model had been originally designed).
The original use case will behave correctly if @ElementClassCriteria is used --
it is that simple. Otherwise Artist.getItems() will return a list of Item
containing both Book and Movies.
I
> Incorrect Entity is returned if ElementClassCriteria is not selected.
> ---------------------------------------------------------------------
>
> Key: OPENJPA-1200
> URL: https://issues.apache.org/jira/browse/OPENJPA-1200
> Project: OpenJPA
> Issue Type: Bug
> Affects Versions: 2.0.0-M2
> Reporter: Ravi P Palacherla
> Assignee: Ravi P Palacherla
> Fix For: 1.1.1, 2.0.0-M3
>
> Attachments: openJPA-1200_1.1.x.patch, OPENJPA-1200_trunk.patch
>
>
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