Package org.apache.drill.exec.server.options

Class TypeValidators.MaxWidthValidator

java.lang.Object

org.apache.drill.exec.server.options.OptionValidator

org.apache.drill.exec.server.options.TypeValidators.TypeValidator

org.apache.drill.exec.server.options.TypeValidators.LongValidator

org.apache.drill.exec.server.options.TypeValidators.MaxWidthValidator

Enclosing class:

TypeValidators

public static class TypeValidators.MaxWidthValidator
extends TypeValidators.LongValidator

Max width is a special validator which computes and validates the maxwidth. If the maxwidth is already set in system/session the value is returned or else it is computed dynamically based on the available number of processors and cpu load average

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.server.options.OptionValidator

OptionValidator.OptionDescription

Constructor Summary

Constructors

Constructor	Description
MaxWidthValidator(String name, OptionValidator.OptionDescription description)

Method Summary

Modifier and Type	Method	Description
int	computeMaxWidth(double cpuLoadAverage, long maxWidth)

Methods inherited from class org.apache.drill.exec.server.options.TypeValidators.TypeValidator

getConfigProperty, getKind, validate

Methods inherited from class org.apache.drill.exec.server.options.OptionValidator

getOptionDescription, getOptionName, getTtl, isShortLived

Methods inherited from class java.lang.Object

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

Constructor Details

MaxWidthValidator

public MaxWidthValidator(String name,
 OptionValidator.OptionDescription description)

Method Details

computeMaxWidth

public int computeMaxWidth(double cpuLoadAverage,
 long maxWidth)