/**
* Close the scan.
*
* @see GenericScanController#newRowLocationTemplate
*/
public void close() throws StandardException {
super.close();
if (base_cc_for_locking != null) {
base_cc_for_locking.close();
base_cc_for_locking = null;
}
}
/**
* Initialize the scan for use.
*
* <p>Any changes to this method may have to be reflected in close as well.
*
* <p>The btree init opens the container (super.init), and stores away the state of the
* qualifiers. The actual searching for the first position is delayed until the first next() call.
*
* @exception StandardException Standard exception policy.
*/
public void init(
TransactionManager xact_manager,
Transaction rawtran,
int open_mode,
int lock_level,
LockingPolicy locking_policy,
int isolation_level,
boolean open_for_locking,
FormatableBitSet scanColumnList,
B2I conglomerate,
B2IUndo undo)
throws StandardException {
// open and lock the base table.
int base_open_mode = open_mode | TransactionController.OPENMODE_FOR_LOCK_ONLY;
// open the base conglomerate - just to get lock
base_cc_for_locking =
xact_manager.openConglomerate(
conglomerate.baseConglomerateId, false, base_open_mode, lock_level, isolation_level);
BTreeLockingPolicy b2i_locking_policy =
conglomerate.getBtreeLockingPolicy(
rawtran, lock_level, open_mode, isolation_level, base_cc_for_locking, this);
super.init(
xact_manager,
rawtran,
false,
open_mode,
lock_level,
b2i_locking_policy,
scanColumnList,
(DataValueDescriptor[]) null, // no start position supported
ScanController.NA, // no start position supported
(Qualifier[][]) null, // no qualifier supported
(DataValueDescriptor[]) null, // no stop position supported
ScanController.NA, // no stop position supported
conglomerate,
undo,
(StaticCompiledOpenConglomInfo) null,
(DynamicCompiledOpenConglomInfo) null);
}