org.apache.flink.runtime.util.config.memory

枚举 ManagedMemoryUtils

java.lang.Object

java.lang.Enum<ManagedMemoryUtils>

org.apache.flink.runtime.util.config.memory.ManagedMemoryUtils

所有已实现的接口:

Serializable, Comparable<ManagedMemoryUtils>

public enum ManagedMemoryUtils
extends Enum<ManagedMemoryUtils>

Utils for configuration and calculations related to managed memory and its various use cases.

方法概要

限定符和类型	方法和说明
static double	convertToFractionOfSlot(org.apache.flink.core.memory.ManagedMemoryUseCase useCase, double fractionOfUseCase, Set<org.apache.flink.core.memory.ManagedMemoryUseCase> allUseCases, org.apache.flink.configuration.Configuration config, Optional<Boolean> stateBackendFromApplicationUsesManagedMemory, ClassLoader classLoader)
static double	getFractionRoundedDown(long dividend, long divisor)
static void	validateUseCaseWeightsNotConflict(Map<org.apache.flink.core.memory.ManagedMemoryUseCase,Integer> weights1, Map<org.apache.flink.core.memory.ManagedMemoryUseCase,Integer> weights2)
static ManagedMemoryUtils	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static ManagedMemoryUtils[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

方法详细资料

values

public static ManagedMemoryUtils[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

for (ManagedMemoryUtils c : ManagedMemoryUtils.values())
    System.out.println(c);

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static ManagedMemoryUtils valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

convertToFractionOfSlot

public static double convertToFractionOfSlot(org.apache.flink.core.memory.ManagedMemoryUseCase useCase,
                                             double fractionOfUseCase,
                                             Set<org.apache.flink.core.memory.ManagedMemoryUseCase> allUseCases,
                                             org.apache.flink.configuration.Configuration config,
                                             Optional<Boolean> stateBackendFromApplicationUsesManagedMemory,
                                             ClassLoader classLoader)

getFractionRoundedDown

public static double getFractionRoundedDown(long dividend,
                                            long divisor)

validateUseCaseWeightsNotConflict

public static void validateUseCaseWeightsNotConflict(Map<org.apache.flink.core.memory.ManagedMemoryUseCase,Integer> weights1,
                                                     Map<org.apache.flink.core.memory.ManagedMemoryUseCase,Integer> weights2)