com.google.cloud.dataflow.sdk.transforms

Class Sum.SumDoubleFn

java.lang.Object

com.google.cloud.dataflow.sdk.transforms.Sum.SumDoubleFn

All Implemented Interfaces:

SerializableFunction<java.lang.Iterable<java.lang.Double>,java.lang.Double>, java.io.Serializable

Enclosing class:

Sum

public static class Sum.SumDoubleFn
extends java.lang.Object
implements SerializableFunction<java.lang.Iterable<java.lang.Double>,java.lang.Double>

A SerializableFunction that computes the sum of an Iterable of Doubles, useful as an argument to Combine.globally(com.google.cloud.dataflow.sdk.transforms.SerializableFunction<java.lang.Iterable<V>, V>) or Combine.perKey(com.google.cloud.dataflow.sdk.transforms.SerializableFunction<java.lang.Iterable<V>, V>).

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
Sum.SumDoubleFn()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Double	apply(java.lang.Iterable<java.lang.Double> input) Returns the result of invoking this function on the given input.

Methods inherited from class java.lang.Object

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

Constructor Detail

Sum.SumDoubleFn

public Sum.SumDoubleFn()

Method Detail

apply

public java.lang.Double apply(java.lang.Iterable<java.lang.Double> input)

Description copied from interface: SerializableFunction

Returns the result of invoking this function on the given input.

Specified by:

apply in interface SerializableFunction<java.lang.Iterable<java.lang.Double>,java.lang.Double>