[jira] Updated: (OPENJPA-944) FetchAttribute.recursionDepth = -1 does not load properly self referenced entities in a complex relation

["Yanko Zhivkov (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/OPENJPA-944?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Yanko Zhivkov updated OPENJPA-944:
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    Attachment: openjpa_complex_relation_recursion_test.zip

Attached a test case that shows the error. I tried the test case with 1.0.0, 1.0.1, 1.0.3, 1.1.0 and 1.2.0 and even with the latest trunk code but neither of them work.




> FetchAttribute.recursionDepth = -1 does not load properly self referenced entities in a complex relation
> --------------------------------------------------------------------------------------------------------
>
>                 Key: OPENJPA-944
>                 URL: https://issues.apache.org/jira/browse/OPENJPA-944
>             Project: OpenJPA
>          Issue Type: Bug
>          Components: jdbc, kernel
>    Affects Versions: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.2.0
>         Environment: JDK: Sun 1.5
> Database: Derby 10.2.2.0
> OS: Windows XP 
>            Reporter: Yanko Zhivkov
>            Priority: Critical
>         Attachments: openjpa_complex_relation_recursion_test.zip
>
>
> A problem with loading recursively referenced entities was found when there is a complex relation of the following kind:
> Leaf <-> BranchConnection <-> Branch(1) <- Branch(2) <- ...
> where Branch has a self reference to itself.
> Using a FetchPlan with a fetch group that has a fetch attribute with recursionDepth=-1 does not produce the expected result and only the first of the Branch nodes is loaded. 
> Loading a Leaf with 5 branches in a row and traversing through them fails right on level 3 (starting from 5 downwards) which leads to the thought that OpenJPA loads only the first element (along with its direct parent).

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