Hi,

I have a problem with hibernate in my application. I am using a loop for processing records like example below-

Fetch 10 records
While()
{
Begin transaction
Lock one record(using session.lock)
Process this record
Commit transaction
}

Application will run on two or more machines to access one database, this is why lock is important.

Inside the loop everything is fine in first run, but next time when trying to lock it gets error-

2012-07-11 05:33:02,361 ERROR [STDERR] net.sf.hibernate.exception.GenericJDBCException: Unable to perform find
At net.sf.hibernate.exception.ErrorCodeConverter.hand ledNonSpecificException(ErrorCodeConverter.java:90 )
At net.sf.hibernate.exception.ErrorCodeConverter.conv ert(ErrorCodeConverter.java:79)
At net.sf.hibernate.exception.JDBCExceptionHelper.con vert(JDBCExceptionHelper.java:29)
At net.sf.hibernate.impl.SessionImpl.convert(SessionI mpl.java:4131)
At net.sf.hibernate.impl.SessionImpl.find(SessionImpl .java:3663)
At net.sf.hibernate.impl.CriteriaImpl.list(CriteriaIm pl.java:238)
At com.uniteller.switchcore.databroker.DataBroker.fet chUpdateRecord(DataBroker.java:760)
At com.uniteller.switchcore.databroker.DataBrokerProc essor.processUpdates(DataBrokerProcessor.java:50)
At com.uniteller.switchcore.databroker.DataBroker.run (DataBroker.java:258)
Caused by: java.sql.SQLException: ORA-01002: fetch out of sequence

At oracle.jdbc.dbaccess.DBError.throwSqlException(DBE rror.java:168)
At oracle.jdbc.oci8.OCIDBAccess.check_error(OCIDBAcce ss.java:1597)
At oracle.jdbc.oci8.OCIDBAccess.fetch(OCIDBAccess.jav a:1410)
At oracle.jdbc.driver.OracleStatement.doExecuteQuery( OracleStatement.java:1681)
At oracle.jdbc.driver.OracleStatement.doExecuteWithTi meout(OracleStatement.java:1870)
At oracle.jdbc.driver.OraclePreparedStatement.execute Update(OraclePreparedStatement.java:363)
At oracle.jdbc.driver.OraclePreparedStatement.execute Query(OraclePreparedStatement.java:314)
At org.jboss.resource.adapter.jdbc.WrappedPreparedSta tement.executeQuery(WrappedPreparedStatement.java: 304)
At net.sf.hibernate.impl.BatcherImpl.getResultSet(Bat cherImpl.java:89)
At net.sf.hibernate.loader.Loader.getResultSet(Loader .java:880)
At net.sf.hibernate.loader.Loader.doQuery(Loader.java :273)
At net.sf.hibernate.loader.Loader.doQueryAndInitializ eNonLazyCollections(Loader.java:138)
At net.sf.hibernate.loader.Loader.doList(Loader.java: 1063)
At net.sf.hibernate.loader.Loader.list(Loader.java:10 54)
At net.sf.hibernate.loader.CriteriaLoader.list(Criter iaLoader.java:118)
At net.sf.hibernate.impl.SessionImpl.find(SessionImpl .java:3660)
... 4 more