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From "Kevin Sutter (JIRA)" <>
Subject [jira] [Commented] (OPENJPA-1973) Unlocked field support
Date Mon, 04 Apr 2011 20:11:05 GMT


Kevin Sutter commented on OPENJPA-1973:

Hi Patrick,
Can you expand on your scenario just a bit?  I noticed in your example that you are also using
an @Version column.  If that's the case, then the individual attributes should not be used
for optimistic locking comparisons, right?  OpenJPA should only be relying on the @Version
column to determine optimistic lock exceptions.  Are there exceptions to this rule that you
are attempting to alleviate?  Thanks for the clarification.

And, Welcome Back!  :-)


> Unlocked field support
> ----------------------
>                 Key: OPENJPA-1973
>                 URL:
>             Project: OpenJPA
>          Issue Type: New Feature
>          Components: docs, jdbc, jpa
>            Reporter: Patrick Linskey
>            Assignee: Patrick Linskey
>         Attachments: OPENJPA-1973-with-docs.patch, 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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