org.apache.hadoop.hive.ql.optimizer

Class ColumnPrunerProcFactory.ColumnPrunerJoinProc

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.ColumnPrunerProcFactory.ColumnPrunerJoinProc

All Implemented Interfaces:

NodeProcessor

Enclosing class:

ColumnPrunerProcFactory

public static class ColumnPrunerProcFactory.ColumnPrunerJoinProc
extends Object
implements NodeProcessor

The Node Processor for Column Pruning on Join Operators.

Constructor Summary

Constructors

Constructor and Description
ColumnPrunerProcFactory.ColumnPrunerJoinProc()

Method Summary

Methods

Modifier and Type	Method and Description
Object	process(Node nd, Stack<Node> stack, NodeProcessorCtx ctx, Object... nodeOutputs) Generic process for all ops that don't have specific implementations.

Methods inherited from class java.lang.Object

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

Constructor Detail

ColumnPrunerProcFactory.ColumnPrunerJoinProc

public ColumnPrunerProcFactory.ColumnPrunerJoinProc()

Method Detail

process

public Object process(Node nd,
             Stack<Node> stack,
             NodeProcessorCtx ctx,
             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

ctx - 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