com.google.cloud.dataflow.sdk.transforms

Class Sum.SumIntegerFn

java.lang.Object

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

All Implemented Interfaces:

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

Enclosing class:

Sum

public static class Sum.SumIntegerFn
extends java.lang.Object
implements SerializableFunction<java.lang.Iterable<java.lang.Integer>,java.lang.Integer>

A SerializableFunction that computes the sum of an Iterable of Integers, 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.SumIntegerFn()

Method Summary

Methods

Modifier and Type	Method and Description
java.lang.Integer	apply(java.lang.Iterable<java.lang.Integer> 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.SumIntegerFn

public Sum.SumIntegerFn()

Method Detail

apply

public java.lang.Integer apply(java.lang.Iterable<java.lang.Integer> 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.Integer>,java.lang.Integer>