io.cdap.cdap.etl.api

Class JoinConfig

java.lang.Object

io.cdap.cdap.etl.api.JoinConfig

public class JoinConfig
extends Object

Join configuration to hold information about join to be performed

Constructor Summary

Constructors

Constructor and Description
JoinConfig(Iterable<String> requiredInputs) Creates new instance of JoinConfig

Method Summary

Modifier and Type	Method and Description
Iterable<String>	getRequiredInputs() Returns required inputs to be joined.

Methods inherited from class java.lang.Object

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

Constructor Detail

JoinConfig

public JoinConfig(Iterable<String> requiredInputs)

Creates new instance of JoinConfig

Parameters:

requiredInputs - iterable of input stage names. This will be used to find out type of the join. If required inputs are empty, full outer join will be performed. Otherwise, all records from required inputs will be joined using inner join and records from non-required inputs will be present in join result only if they meet join criteria.

Method Detail

getRequiredInputs

public Iterable<String> getRequiredInputs()

Returns required inputs to be joined.

Returns:

iterable of required inputs