/** Retracts the corresponding tuple by retrieving and retracting the fact created for it */
public void retractLeftTuple(
final LeftTuple tuple,
final PropagationContext context,
final InternalWorkingMemory workingMemory) {
// retrieve handle from memory
final InternalFactHandle factHandle = (InternalFactHandle) tuple.getObject();
for (RightTuple rightTuple = factHandle.getFirstRightTuple();
rightTuple != null;
rightTuple = rightTuple.getHandleNext()) {
rightTuple.getRightTupleSink().retractRightTuple(rightTuple, context, workingMemory);
}
factHandle.clearRightTuples();
for (LeftTuple leftTuple = factHandle.getLastLeftTuple();
leftTuple != null;
leftTuple = leftTuple.getLeftParentNext()) {
leftTuple.getLeftTupleSink().retractLeftTuple(leftTuple, context, workingMemory);
}
factHandle.clearLeftTuples();
}
