@Override
public void reset(AggregationBuffer agg) throws HiveException {
SumLongAgg myagg = (SumLongAgg) agg;
myagg.empty = true;
myagg.sum = 0L;
myagg.uniqueObjects = new HashSet<ObjectInspectorObject>();
}
@Override
public void merge(AggregationBuffer agg, Object partial) throws HiveException {
if (partial != null) {
SumLongAgg myagg = (SumLongAgg) agg;
myagg.empty = false;
if (isWindowingDistinct()) {
throw new HiveException(
"Distinct windowing UDAF doesn't support merge and terminatePartial");
} else {
myagg.sum += PrimitiveObjectInspectorUtils.getLong(partial, inputOI);
}
}
}