@Override
public void printContent() {
if (_printOut)
if ((getChainOperator() != null) && getChainOperator().isBlocking()) {
final Operator lastOperator = getChainOperator().getLastOperator();
if (lastOperator instanceof AggregateOperator)
MyUtilities.printBlockingResult(_ID, (AggregateOperator) lastOperator,
_hierarchyPosition, _conf, LOG);
else
MyUtilities.printBlockingResult(_ID, lastOperator.getNumTuplesProcessed(),
lastOperator.printContent(), _hierarchyPosition, _conf, LOG);
}
}