|cached sql insert statement executed during query exection [message #543692]
||Wed, 30 June 2010 10:31
Registered: June 2010
Using eclipselink in extended persistent context mode, and using single entity manager for memory reason.|
The entity manager operations are synchronized to make sure that there is only one thread using the entity manager at a time.
Two threads running in parallel, one writing the records and the other executing sql query to get the data from the database using same entity manager.
The two threads are synchronized so once the writing operation is completed the query gets the executed. This could see from the eclipselink detailed log info that there is no overlapping in sql instructions.
The problem is when executing the sql query, the inerst sql instructions from previously executed statements get cached and executed for the second time and resulting in
Internal Exception: java.sql.BatchUpdateException: The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint or unique index identified by 'SQL100629211102660' defined on 'TEST'.
Error Code: 20000
Query: ReportQuery(referenceClass=Entry sql="SELECT COUNT(t0.ENTRY_ID) FROM ENTRY t0, PRTY t2, TEST t1 WHERE (((LCASE(t1.PATH) LIKE ?) AND (UCASE(t2.PRTY) LIKE ?)) AND ((t1.L_ID = t0.L_ID) AND (t2.PRTY = t0.TEST_ID)))")
Caused by: org.eclipse.persistence.exceptions.DatabaseException:
Internal Exception: java.sql.BatchUpdateException: The statement was aborted because it would have caused a duplicate key value in a unique or primary key constraint or unique index identified by 'SQL100629211102660' defined on
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