org.apache.hadoop.hive.ql.optimizer.metainfo.annotation

Class OpTraitsRulesProcFactory.SelectRule

java.lang.Object

org.apache.hadoop.hive.ql.optimizer.metainfo.annotation.OpTraitsRulesProcFactory.SelectRule

All Implemented Interfaces:

NodeProcessor, SemanticNodeProcessor

Enclosing class:

OpTraitsRulesProcFactory

public static class OpTraitsRulesProcFactory.SelectRule
extends Object
implements SemanticNodeProcessor

Constructor Summary

Constructors

Constructor and Description
SelectRule()

Method Summary

Modifier and Type	Method and Description
List<List<String>>	getConvertedColNames(List<List<String>> parentColNames, SelectOperator selOp, boolean processSortCols)
Object	process(Node nd, Stack<Node> stack, NodeProcessorCtx procCtx, 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

SelectRule

public SelectRule()

Method Detail

getConvertedColNames

public List<List<String>> getConvertedColNames(List<List<String>> parentColNames,
                                               SelectOperator selOp,
                                               boolean processSortCols)

process

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

Description copied from interface: SemanticNodeProcessor

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

Specified by:

process in interface NodeProcessor

Specified by:

process in interface SemanticNodeProcessor

Parameters:

nd - operator to process

procCtx - 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