[eclipselink-dev] PESSIMISTIC

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[eclipselink-dev] PESSIMISTIC_READ

From: "Goerler, Adrian" <adrian.goerler@xxxxxxx>
Date: Tue, 28 Sep 2010 16:04:28 +0200
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Thread-topic: PESSIMISTIC_READ

Hi,

I am working on pessimistic locking on MaxDB.

MaxDB has lock modes "EXCLUSIVE" and "OPTIMISTIC", which seem to match the JPA lock modes PESSIMISTIC_WRITE and PESSIMIMSTIC_READ respectively.

It appears to me that I need to overwrite DatabasePlatform.getSelectForUpdateString in order to leverage database-specific pessimistic locking. However, it is not clear to me how to achieve the distinction between the lock modes PESSIMISTIC_WRITE and PESSIMIMSTIC_READ.

Am I missing something?

-Adrian

SAP AG

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