org.apache.hadoop.hive.ql.optimizer

Class ReduceSinkMapJoinProc

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.ReduceSinkMapJoinProc

All Implemented Interfaces:

NodeProcessor

public class ReduceSinkMapJoinProc
extends Object
implements NodeProcessor

Constructor Summary

Constructors

Constructor and Description
ReduceSinkMapJoinProc()

Method Summary

Modifier and Type	Method and Description
static BaseWork	getMapJoinParentWork(GenTezProcContext context, Operator<?> parentRS)
Object	process(Node nd, Stack<Node> stack, NodeProcessorCtx procContext, Object... nodeOutputs) Generic process for all ops that don't have specific implementations.
static Object	processReduceSinkToHashJoin(ReduceSinkOperator parentRS, MapJoinOperator mapJoinOp, GenTezProcContext context)

Methods inherited from class java.lang.Object

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

Constructor Detail

ReduceSinkMapJoinProc

public ReduceSinkMapJoinProc()

Method Detail

process

public Object process(Node nd,
                      Stack<Node> stack,
                      NodeProcessorCtx procContext,
                      Object... nodeOutputs)
               throws SemanticException

Description copied from interface: NodeProcessor

Generic process for all ops that don't have specific implementations.

Specified by:

process in interface NodeProcessor

Parameters:

nd - operator to process

procContext - operator processor context

nodeOutputs - A variable argument list of outputs from other nodes in the walk

Returns:

Object to be returned by the process call

Throws:

SemanticException

getMapJoinParentWork

public static BaseWork getMapJoinParentWork(GenTezProcContext context,
                                            Operator<?> parentRS)

processReduceSinkToHashJoin

public static Object processReduceSinkToHashJoin(ReduceSinkOperator parentRS,
                                                 MapJoinOperator mapJoinOp,
                                                 GenTezProcContext context)
                                          throws SemanticException

Throws:

SemanticException