[ http://issues.apache.org/jira/browse/JDO-193?page=all ]

Craig Russell updated JDO-193:
------------------------------

Fix Version: JDO 2 maintenance release 1
Version: JDO 2 final
(was: JDO 2 beta)
Assign To: Michelle Caisse

JDO also allows mapping Lists where there is no join table, and the ordering
 element is contained in the related table.

This should be investigated at the same time.

> Need new test cases for Map where there is no join table; the key is a fie
ld of the value type or  the value is a field of the key type
> --------------------------------------------------------------------------
-------------------------------------------------------------
>
>          Key: JDO-193
>          URL: http://issues.apache.org/jira/browse/JDO-193
>      Project: JDO
>         Type: Test

>   Components: tck20
>     Versions: JDO 2 final
>  Environment: TCK
>     Reporter: Craig Russell
>     Assignee: Michelle Caisse
>      Fix For: JDO 2 maintenance release 1

>
> JDO allows mapping of Maps where there is no join table. The metadata for 
the Employee/Department mapping uses the mapped-by attribute of the map elem
ent:
> <class name="Department">
> <field name="employees" mapped-by="dept">
> <key mapped-by="id"/>
> </field>
> </class>
> <class name="Employee">
> <field name="id" column="ID"/>
> <field name="dept" column="DEPT"/>
> </class>
> Another mapping would have the key of the Map be the Employee and the valu
e be the id.
> We should probably define a separate package for this mapping, as there is some co
nfusion in using parts of the Company model where we have changed a significant part
 of the model.

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