Package cn.sliew.milky.cache.caffeine

Class CaffeineCache<K,V>

java.lang.Object

cn.sliew.milky.cache.caffeine.CaffeineCache<K,V>

All Implemented Interfaces:

Cache<K,V>

public class CaffeineCache<K,V>
extends Object
implements Cache<K,V>

refresh > expire ensure hot key would refreshed before expired. cache key would not be refreshed when no request comes.

because maximumSize can't be combined with maximumWeight, CaffeineCache would not support maximumWeight parameter.

Constructor Summary

Constructors

Constructor	Description
CaffeineCache(CaffeineCacheOptions<K,V> options)

Method Summary

Modifier and Type	Method	Description
void	clear()
V	computeIfAbsent(K key, CacheLoader<K,V> loader, Duration expire)
boolean	containsKey(K key)
void	destroy()
V	get(K key)
Iterator<K>	hotKeyIterator(int n)
Iterator<K>	keyIterator()
String	name()
void	put(K key, V value)
void	put(K key, V value, Duration expire)
void	remove(K key)
void	removeAll(Iterable<K> keys)
long	size()
void	stats(io.micrometer.core.instrument.MeterRegistry registry)
boolean	supportNullKey()
boolean	supportNullValue()

Methods inherited from class java.lang.Object

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

Constructor Detail

CaffeineCache

public CaffeineCache(CaffeineCacheOptions<K,V> options)

Method Detail

name

public String name()

Specified by:

name in interface Cache<K,V>

get

public V get(K key)

Specified by:

get in interface Cache<K,V>

containsKey

public boolean containsKey(K key)

Specified by:

containsKey in interface Cache<K,V>

computeIfAbsent

public V computeIfAbsent(K key,
                         CacheLoader<K,V> loader,
                         Duration expire)

Specified by:

computeIfAbsent in interface Cache<K,V>

put

public void put(K key,
                V value)

Specified by:

put in interface Cache<K,V>

put

public void put(K key,
                V value,
                Duration expire)

Specified by:

put in interface Cache<K,V>

remove

public void remove(K key)

Specified by:

remove in interface Cache<K,V>

removeAll

public void removeAll(Iterable<K> keys)

Specified by:

removeAll in interface Cache<K,V>

size

public long size()

Specified by:

size in interface Cache<K,V>

supportNullKey

public boolean supportNullKey()

Specified by:

supportNullKey in interface Cache<K,V>

supportNullValue

public boolean supportNullValue()

Specified by:

supportNullValue in interface Cache<K,V>

keyIterator

public Iterator<K> keyIterator()

Specified by:

keyIterator in interface Cache<K,V>

hotKeyIterator

public Iterator<K> hotKeyIterator(int n)

Specified by:

hotKeyIterator in interface Cache<K,V>

stats

public void stats(io.micrometer.core.instrument.MeterRegistry registry)

Specified by:

stats in interface Cache<K,V>

clear

public void clear()

Specified by:

clear in interface Cache<K,V>

destroy

public void destroy()

Specified by:

destroy in interface Cache<K,V>