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

Class MemoryEstimationVisitor

java.lang.Object

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

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

All Implemented Interfaces:

PrelVisitor<Double,Void,RuntimeException>

public class MemoryEstimationVisitor
extends BasePrelVisitor<Double,Void,RuntimeException>

Constructor Summary

Constructors

Constructor and Description
MemoryEstimationVisitor()

Method Summary

Modifier and Type	Method and Description
static boolean	enoughMemory(Prel prel, OptionManager options, int numDrillbits)
static Double	estimateMemory(Prel prel)
Double	visitPrel(Prel prel, Void value)

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

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

Methods inherited from class java.lang.Object

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

Constructor Detail

MemoryEstimationVisitor

public MemoryEstimationVisitor()

Method Detail

enoughMemory

public static boolean enoughMemory(Prel prel,
                                   OptionManager options,
                                   int numDrillbits)

estimateMemory

public static Double estimateMemory(Prel prel)

visitPrel

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

Specified by:

visitPrel in interface PrelVisitor<Double,Void,RuntimeException>

Overrides:

visitPrel in class BasePrelVisitor<Double,Void,RuntimeException>

Throws:

RuntimeException