com.fr.cache

类 LfuPolicyHelper

java.lang.Object

com.fr.cache.LfuPolicyHelper

public final class LfuPolicyHelper
extends java.lang.Object

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嵌套类概要

嵌套类

限定符和类型	类和说明
static interface	LfuPolicyHelper.Metadata A type representing relevant metadata from an element, used by LfuPolicy for its operations.

方法概要

方法

限定符和类型	方法和说明
protected static int[]	generateRandomSample(int populationSize) Generates a random sample from a population
protected static LfuPolicyHelper.Metadata	leastHit(LfuPolicyHelper.Metadata[] sampledElements, LfuPolicyHelper.Metadata justAdded) Finds the least hit of the sampled elements provided

从类继承的方法 java.lang.Object

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

方法详细资料

leastHit

protected static LfuPolicyHelper.Metadata leastHit(LfuPolicyHelper.Metadata[] sampledElements,
                                LfuPolicyHelper.Metadata justAdded)

Finds the least hit of the sampled elements provided

参数:

sampledElements - this should be a random subset of the population

justAdded - we never want to select the element just added. May be null.

返回:

the least hit

generateRandomSample

protected static int[] generateRandomSample(int populationSize)

Generates a random sample from a population

参数:

populationSize - the size to draw from