private Value evaluateFunction(Function function, Value[] values) throws FunctionException {
if (function.isAggregate()) {
AggregateFunction f = (AggregateFunction) function;
f.evaluate(dsf, values);
Value lastCall = f.getAggregateResult();
return lastCall;
} else {
return ((ScalarFunction) function).evaluate(dsf, values);
}
}
protected Type evaluate(AggregateFunction function, Type... args) throws FunctionException {
return function.getType(args);
}
protected Value evaluateAggregatedZeroRows(AggregateFunction function) {
return function.getAggregateResult();
}