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

• Type: Bug
• Status: Closed
• Priority: Critical
• Resolution: Fixed
• Affects Version/s: 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.1.0, 1.2.0
• Fix Version/s: 2.0.0-beta
• Component/s: jdbc, kernel
• Environment: JDK: Sun 1.5; Database: Derby 10.2.2.0; OS: Windows XP
• Patch Info: Patch Available
• Assignee: Pinaki Poddar
• Reporter: Yanko Zhivkov
• Created: 26/Feb/09 18:58
• Updated: 09/Mar/10 18:31
• Resolved: 18/Jan/10 21:36

Description

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).

Issue Links

• is related to: OPENJPA-911 Issue with FetchAttribute recursionDepth