com.github.benmanes.caffeine.cache.simulator.policy.opt

Class ClairvoyantPolicy

java.lang.Object

com.github.benmanes.caffeine.cache.simulator.policy.opt.ClairvoyantPolicy

All Implemented Interfaces:

Policy

public final class ClairvoyantPolicy
extends Object
implements Policy

Bélády's optimal page replacement policy. The upper bound of the hit rate is estimated by evicting from the cache the item that will next be used farthest into the future.

Nested Class Summary

Nested classes/interfaces inherited from interface com.github.benmanes.caffeine.cache.simulator.policy.Policy

Policy.Characteristic, Policy.KeyOnlyPolicy, Policy.PolicySpec

Constructor Summary

Constructors

Constructor and Description
ClairvoyantPolicy(Config config)

Method Summary

Modifier and Type	Method and Description
void	finished() Indicates that the recording has completed.
void	record(AccessEvent event) Records that the entry was accessed.
PolicyStats	stats() Returns the cache efficiency statistics.

Methods inherited from class java.lang.Object

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

Methods inherited from interface com.github.benmanes.caffeine.cache.simulator.policy.Policy

name

Constructor Detail

ClairvoyantPolicy

public ClairvoyantPolicy(Config config)

Method Detail

record

public void record(AccessEvent event)

Description copied from interface: Policy

Records that the entry was accessed.

Specified by:

record in interface Policy

stats

public PolicyStats stats()

Description copied from interface: Policy

Returns the cache efficiency statistics.

Specified by:

stats in interface Policy

finished

public void finished()

Description copied from interface: Policy

Indicates that the recording has completed.

Specified by:

finished in interface Policy