Mike Matrigali wrote: > > > Andreas Korneliussen (JIRA) wrote: >> [ http://issues.apache.org/jira/browse/DERBY-1696?page=all ] >> >> Andreas Korneliussen updated DERBY-1696: >> ---------------------------------------- >> >> Component/s: Store >> >> To fix this issue, I need a mechanism to notify the store >> (scancontroller) to move off the row (i.e to afterLast() or >> beforeFirst()), so that it can release the lock on the current row. >> >> I do consider the following options: >> >> Alternative 1: Use the method >> ScanController.positionAtRowLocation(RowLocation rl) >> >> Here the RowLocation objects could represent the positions beforeFirst >> and afterLast. I.e one could make use of the RecordHandle. >> RESERVED4_RECORD_HANDLE and >> RecordHandle. RESERVED4_RECORD_HANDLE to represent to beforeFirst and >> afterLast positions. >> >> When the method ScanController.positionAtRowLocation(RowLocation rl), >> is called with a rowlocation with these positions, >> the scan implementation may release the U-lock of the current row >> >> Alternative 2: >> Add new methods to ScanController interface: moveToAfterLast() and >> moveToBeforeFirst() > > Can you just close the scan if you don't need it positioned anymore?
I'll check if that works Regards Andreas
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