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From "Albert Lee (JIRA)" <j...@apache.org>
Subject [jira] Created: (OPENJPA-1402) Improve (avoid) lock on relation field per 2.0 spec semantics
Date Fri, 27 Nov 2009 05:10:39 GMT
Improve (avoid) lock on relation field per 2.0 spec semantics
-------------------------------------------------------------

                 Key: OPENJPA-1402
                 URL: https://issues.apache.org/jira/browse/OPENJPA-1402
             Project: OpenJPA
          Issue Type: Improvement
          Components: jpa
    Affects Versions: 2.0.0-M3, 2.0.0
            Reporter: Albert Lee
            Assignee: Albert Lee
            Priority: Minor
             Fix For: 2.0.0


Current pessimistic lock manager locks relation fields by default.

JPA 2.0 spec does not require relation field to be locked for better concurrency. This JIRA
is used to implement the 2.0 locking semantics only if mixed lock manager is deployed.

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