org.apache.calcite.interpreter

Class AggregateNode.DoubleSum

java.lang.Object

org.apache.calcite.interpreter.AggregateNode.DoubleSum

Enclosing class:

AggregateNode

public static class AggregateNode.DoubleSum
extends Object

Implementation of SUM over DOUBLE values as a user-defined aggregate.

Constructor Summary

Constructors

Constructor and Description
DoubleSum()

Method Summary

Modifier and Type	Method and Description
double	add(double accumulator, double v)
double	init()
double	merge(double accumulator0, double accumulator1)
double	result(double accumulator)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DoubleSum

public DoubleSum()

Method Detail

init

public double init()

add

public double add(double accumulator,
                  double v)

merge

public double merge(double accumulator0,
                    double accumulator1)

result

public double result(double accumulator)