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https://issues.apache.org/jira/browse/OPENJPA-1973?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13015110#comment-13015110
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Patrick Linskey commented on OPENJPA-1973:
------------------------------------------
Basic docs: annotate a persistent property with @Unlocked, and OpenJPA will not
include that field in optimistic lock computation when using any lock variant
that derives from ColumnVersionStrategy. See
openjpa-persistence-jdbc/src/test/java/org/apache/openjpa/jdbc/meta/strats/EntityWithUnlockedFields.java
for an example.
> Unlocked field support
> ----------------------
>
> Key: OPENJPA-1973
> URL: https://issues.apache.org/jira/browse/OPENJPA-1973
> Project: OpenJPA
> Issue Type: New Feature
> Components: docs, jdbc, jpa
> Reporter: Patrick Linskey
> Assignee: Patrick Linskey
> Attachments: OPENJPA-1973.patch
>
>
> Often, it's desirable to exclude certain fields from the optimistic locking
> computation. For example, if a PurchaseOrder's lastUpdatedDate field is
> updated every time a line item is added, it may be acceptable to simply use
> the latest value instead of requiring an optimistic lock check / collision.
> Let's add support for such fields.
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