private static boolean executeFilter(
SourceOperatorFactory operatorFactory, Split split, Session session) {
SourceOperator operator = operatorFactory.createOperator(createDriverContext(session));
operator.addSplit(split);
operator.noMoreSplits();
return executeFilter(operator);
}
private Object selectSingleValue(
SourceOperatorFactory operatorFactory, Split split, Session session) {
SourceOperator operator = operatorFactory.createOperator(createDriverContext(session));
operator.addSplit(split);
operator.noMoreSplits();
return selectSingleValue(operator);
}