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From "Michael Bouschen (JIRA)" <j...@apache.org>
Subject [jira] Resolved: (JDO-426) NullCollectionsAndIsEmpty does not unset mapped side of relation
Date Wed, 04 Oct 2006 19:42:20 GMT
     [ http://issues.apache.org/jira/browse/JDO-426?page=all ]

Michael Bouschen resolved JDO-426.
----------------------------------

    Fix Version/s: JDO 2.0 TCK challenge fixes
       Resolution: Fixed

This needs to be fixed in the 2.0.1 branch, because the spec is ambiguous with respect to
whether changes made on the mapped-by side are reflected in the database or not. The maintenance
release will fix the spec and clarify that these changes are written to the database. So both
test classes do not need to be changed in the trunk.

I changed classes NullCollectionsAndIsEmpty  and NullCollectionsAndContains in the branch
2.0.1 and added code to update the non mapped-by side of the relationship (see revision 452987).

> NullCollectionsAndIsEmpty does not unset mapped side of relation
> ----------------------------------------------------------------
>
>                 Key: JDO-426
>                 URL: http://issues.apache.org/jira/browse/JDO-426
>             Project: JDO
>          Issue Type: Bug
>          Components: tck20
>    Affects Versions: JDO 2 final
>            Reporter: Abe White
>         Assigned To: Michael Bouschen
>             Fix For: JDO 2.0 TCK challenge fixes
>
>
> org.apache.jdo.tck.query.jdoql.NullCollectionsAndIsEmpty uses its localSetUp() method
to null the projects of an Employee.  However, the Employee.projects field uses mapped-by
in its mapping, and per section 15.3 of the JDO 2 spec, that means changes to it aren't reflected
in the datastore.  To fix, add the following lines after retrieving "emp1" but before nulling
its projects in localSetUp():
>         for (Iterator itr = emp1.getProjects().iterator(); itr.hasNext();)
>             ((Project) itr.next()).removeMember(emp1);

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