co.cask.cdap.etl.spark.function

Class LeftJoinFlattenFunction<T>

java.lang.Object

co.cask.cdap.etl.spark.function.LeftJoinFlattenFunction<T>

Type Parameters:

T - type of object to flatten

All Implemented Interfaces:

Serializable, org.apache.spark.api.java.function.Function<scala.Tuple2<List<JoinElement<T>>,com.google.common.base.Optional<T>>,List<JoinElement<T>>>

public class LeftJoinFlattenFunction<T>
extends Object
implements org.apache.spark.api.java.function.Function<scala.Tuple2<List<JoinElement<T>>,com.google.common.base.Optional<T>>,List<JoinElement<T>>>

Flattens the Tuple2 of list and optional object returned by a left outer join into a single list.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
LeftJoinFlattenFunction(String inputStageName)

Method Summary

Modifier and Type	Method and Description
List<JoinElement<T>>	call(scala.Tuple2<List<JoinElement<T>>,com.google.common.base.Optional<T>> in)

Methods inherited from class java.lang.Object

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

Constructor Detail

LeftJoinFlattenFunction

public LeftJoinFlattenFunction(String inputStageName)

Method Detail

call

public List<JoinElement<T>> call(scala.Tuple2<List<JoinElement<T>>,com.google.common.base.Optional<T>> in)
                          throws Exception

Specified by:

call in interface org.apache.spark.api.java.function.Function<scala.Tuple2<List<JoinElement<T>>,com.google.common.base.Optional<T>>,List<JoinElement<T>>>

Throws:

Exception