org.apache.drill.exec.planner.physical.visitor

Class FinalColumnReorderer

java.lang.Object

org.apache.drill.exec.planner.physical.visitor.BasePrelVisitor<Prel,Void,RuntimeException>

org.apache.drill.exec.planner.physical.visitor.FinalColumnReorderer

All Implemented Interfaces:

PrelVisitor<Prel,Void,RuntimeException>

public class FinalColumnReorderer
extends BasePrelVisitor<Prel,Void,RuntimeException>

Field Summary

Fields inherited from interface org.apache.drill.exec.planner.physical.visitor.PrelVisitor

logger

Constructor Summary

Constructors

Constructor and Description
FinalColumnReorderer()

Method Summary

Modifier and Type	Method and Description
static Prel	addFinalColumnOrdering(Prel prel)
Prel	visitPrel(Prel prel, Void value)
Prel	visitScreen(ScreenPrel prel, Void value)
Prel	visitWriter(WriterPrel prel, Void value)

Methods inherited from class org.apache.drill.exec.planner.physical.visitor.BasePrelVisitor

visitExchange, visitJoin, visitLateral, visitLeaf, visitProject, visitScan, visitScan, visitUnnest

Methods inherited from class java.lang.Object

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

Constructor Detail

FinalColumnReorderer

public FinalColumnReorderer()

Method Detail

addFinalColumnOrdering

public static Prel addFinalColumnOrdering(Prel prel)

visitScreen

public Prel visitScreen(ScreenPrel prel,
                        Void value)
                 throws RuntimeException

Specified by:

visitScreen in interface PrelVisitor<Prel,Void,RuntimeException>

Overrides:

visitScreen in class BasePrelVisitor<Prel,Void,RuntimeException>

Throws:

RuntimeException

visitWriter

public Prel visitWriter(WriterPrel prel,
                        Void value)
                 throws RuntimeException

Specified by:

visitWriter in interface PrelVisitor<Prel,Void,RuntimeException>

Overrides:

visitWriter in class BasePrelVisitor<Prel,Void,RuntimeException>

Throws:

RuntimeException

visitPrel

public Prel visitPrel(Prel prel,
                      Void value)
               throws RuntimeException

Specified by:

visitPrel in interface PrelVisitor<Prel,Void,RuntimeException>

Overrides:

visitPrel in class BasePrelVisitor<Prel,Void,RuntimeException>

Throws:

RuntimeException