public class Count extends Object implements CombinerAggregator<Long>
Constructor and Description |
---|
Count() |
Modifier and Type | Method and Description |
---|---|
Long |
combine(Long val1,
Long val2) |
Long |
init(TridentTuple tuple) |
Long |
zero() |
public Long init(TridentTuple tuple)
init
in interface CombinerAggregator<Long>
public Long combine(Long val1, Long val2)
combine
in interface CombinerAggregator<Long>
public Long zero()
zero
in interface CombinerAggregator<Long>
Copyright © 2022 The Apache Software Foundation. All rights reserved.