Package org.apache.spark.api.java.function

Interface CoGroupFunction<K,V1,V2,R>

All Superinterfaces:

Serializable

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface CoGroupFunction<K,V1,V2,R>
extends Serializable

A function that returns zero or more output records from each grouping key and its values from 2 Datasets.

Method Summary

Modifier and Type	Method	Description
Iterator<R>	call(K key, Iterator<V1> left, Iterator<V2> right)

Method Details

call

Iterator<R> call(K key,
 Iterator<V1> left,
 Iterator<V2> right)
          throws Exception

Throws:

Exception