co.cask.cdap.etl.spark.function

Class InitialJoinFunction<T>

java.lang.Object

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

Type Parameters:

T - type of object

All Implemented Interfaces:

Serializable, org.apache.spark.api.java.function.Function<T,List<JoinElement<T>>>

public class InitialJoinFunction<T>
extends Object
implements org.apache.spark.api.java.function.Function<T,List<JoinElement<T>>>

Transforms an Object into a singleton list containing the JoinElement of that object. Used to map the initial PairRDD of a join into the type expected by other parts of the join.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
InitialJoinFunction(String inputStageName)

Method Summary

Modifier and Type	Method and Description
List<JoinElement<T>>	call(T obj)

Methods inherited from class java.lang.Object

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

Constructor Detail

InitialJoinFunction

public InitialJoinFunction(String inputStageName)

Method Detail

call

public List<JoinElement<T>> call(T obj)
                          throws Exception

Specified by:

call in interface org.apache.spark.api.java.function.Function<T,List<JoinElement<T>>>

Throws:

Exception