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From "Brian Dellert (JIRA)" <>
Subject [jira] Updated: (OPENJPA-911) Issue with FetchAttribute recursionDepth
Date Fri, 06 Feb 2009 23:15:02 GMT


Brian Dellert updated OPENJPA-911:

    Attachment: openjpa_recursion_test.jar

Test case which reproduces issue.

> Issue with FetchAttribute recursionDepth 
> -----------------------------------------
>                 Key: OPENJPA-911
>                 URL:
>             Project: OpenJPA
>          Issue Type: Bug
>    Affects Versions: 1.2.0
>         Environment: JDK: Sun 1.6
> Database: Derby
> OS: Windows XP
>            Reporter: Brian Dellert
>         Attachments: openjpa_recursion_test.jar
> I am attempting to leverage the recursionDepth FetchAttribute on a couple of related
JPA entity classes, but OpenJPA does not seem to be honoring the value in a certain scenario.
 Even if I specify a recursionDepth of 50, a load of the object graph is only returning a
recursionDepth of 1 in this scenario.
> The issue I'm seeing manifests itself when there is a 'container' class which has a OneToOne
reference to an 'entity' class, and the 'entity' class has a OneToMany recursive self-reference
.  Here, when I first create an object graph where an instance of the 'container' class references
a 3 level entity graph, I can save the graph and then load the graph and the specified recursionDepth
is being honored.  If I then delete the 'container' object (which cascades the delete to the
'entity' graph), the delete occurs correctly.  But, if I then create/save a new graph of objects,
the subsequent load of this new graph does not honor the recursionDepth.  I have explicitly
added the relevant FetchGroups to the entity manager FetchPlan.
> It should be noted that I needed to specify FetchGroups on both the OneToOne and OneToMany
references described above in order to get the initial load of the graph to succeed.  Also,
it should be noted that this seemed to work  correctly with OpenJPA 1.0.0.
> The attached jar file contains a simple JUnit test case which illustrates this behavior.
 The test case can be run using maven by unjarring the attached file and running:
>    mvn install 
> in the openjpa_recursion_test/ directory.  There are comments in the test code which
further describe the issue.  If any additional information is needed, please let me know.

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