[jira] Created: (OPENJPA-169) Queries against dirty extents and flushing: should provide an option to set savepoint, flush, query, rollback to savepoint

["Patrick Linskey (JIRA)" <ji...@apache.org>]

Queries against dirty extents and flushing: should provide an option to set savepoint, flush, query, rollback to savepoint
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                 Key: OPENJPA-169
                 URL: https://issues.apache.org/jira/browse/OPENJPA-169
             Project: OpenJPA
          Issue Type: Improvement
            Reporter: Patrick Linskey


When issuing a JPQL query after changing data that is involved in the access path of the query, OpenJPA must either flush before querying (and therefore obtain a Connection), or load all instances of the potentially-dirty classes into memory and evaluate the query in memory.

Now that OpenJPA supports savepoints, we should provide an option to set savepoint, flush, query, and then roll the savepoint back.

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