public ChainedFullAggregatorDeclarer aggregate(Fields inputFields, ReducerAggregator agg, Fields functionFields) {
return aggregate(inputFields, new ReducerAggregatorImpl(agg), functionFields);
}
private void initCombiner(Fields inputFields, CombinerAggregator agg, Fields functionFields) {
_stream = _stream.each(inputFields, new CombinerAggregatorInitImpl(agg), functionFields);
}