Improve (avoid) lock on relation field per 2.0 spec semantics
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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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