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From "Pinaki Poddar (JIRA)" <>
Subject [jira] Reopened: (OPENJPA-1214) RelationFieldStrategy behaviour
Date Wed, 09 Jun 2010 01:46:13 GMT


Pinaki Poddar reopened OPENJPA-1214:

      Assignee: Pinaki Poddar  (was: Donald Woods)

This needs to be further investigated to analyze *why* the strategy changed.
Merely documenting that behavior has changed is not only insufficient, it may even be root
of certain errors that will surface out downstream. Such errors can be hard to relate with
this root cause..

That is what the document says:
"The FieldMapping.getStrategy() in OpenJPA 1.x returned an instance of RelationFieldStrategy
for embded super classes, but will now return an EmbedFieldStrategy. "

Here is the test that records this unexplained change in behavior.

the definition of the field 'sup' in EmbeddableSuperSub 

public class EmbeddableSuperSub extends EmbeddableSuper {
    private EmbeddableSuper sup;
where EmbeddableSuper is a MappedSuperclass.

Firstly the names of the test classes are misleading because MappedSuperClass has nothing
to do with being embeddable. 
Secondly there is no apparent explanation on why suddenly a many-to-one relation to a MappedSuperClass
that used to be RelationFieldStrategy will now handled by a  EmbedFieldStrategy

My hypothesis is this issue is related to some other decisions we were making around embeddablity
of a type.
I am reopening to investigate further.


> RelationFieldStrategy behaviour
> -------------------------------
>                 Key: OPENJPA-1214
>                 URL:
>             Project: OpenJPA
>          Issue Type: Sub-task
>            Reporter: Tim McConnell
>            Assignee: Pinaki Poddar
>             Fix For: 1.3.0, 2.0.0-M3
>         Attachments: OPENJPA-1214-TESTCASE.patch

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