co.cask.cdap.etl.spark.function

Interface PairFlatMapFunc<T,K,V>

Type Parameters:

T - type of input record

K - type of output key

V - type of output value

All Superinterfaces:

Serializable

All Known Implementing Classes:

AggregatorGroupByFunction, BatchSinkFunction, JoinOnFunction

public interface PairFlatMapFunc<T,K,V>
extends Serializable

A function that returns zero or more key-value pair records from each input record. Used instead of Spark's PairFlatMapFunction because that API is different in Spark1 and Spark2.

Method Summary

Modifier and Type	Method and Description
Iterable<scala.Tuple2<K,V>>	call(T t)

Method Detail

call

Iterable<scala.Tuple2<K,V>> call(T t)
                          throws Exception

Throws:

Exception