[jira] Commented: (OPENJPA-1184) Inverse relations not set for MapKey field when using parallel eager select

["Donald Woods (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/OPENJPA-1184?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12736748#action_12736748 ] 

Donald Woods commented on OPENJPA-1184:
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David, do you have a junit testcase that demonstrates this failure?

> Inverse relations not set for MapKey field when using parallel eager select
> ---------------------------------------------------------------------------
>
>                 Key: OPENJPA-1184
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-1184
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc
>    Affects Versions: 1.2.1
>         Environment: All environments using JDBC store.
>            Reporter: David Minor
>             Fix For: 1.2.2, 1.3.0, 2.0.0
>
>         Attachments: openjpa.patch
>
>
> When selecting multiple entities A which contain a @MapKey field for entity B, the inverse relation from B to A will only be set for the first entity A, when using parallel eager select. This is because all entity B objects are created when loading the 1st entity A object, with the inverse relation to be set later in setInverseRelation(), but setInverseRelation() is looking for Collection fields only, so the Map fields are ignored.

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