cn.hutool.cache

Class CacheUtil

java.lang.Object

cn.hutool.cache.CacheUtil

public class CacheUtil
extends Object

缓存工具类

Since:

3.0.1

Author:

Looly

Constructor Summary

Constructors

Constructor and Description
CacheUtil()

Method Summary

Modifier and Type	Method and Description
static <K,V> FIFOCache<K,V>	newFIFOCache(int capacity) 创建FIFO(first in first out) 先进先出缓存.
static <K,V> FIFOCache<K,V>	newFIFOCache(int capacity, long timeout) 创建FIFO(first in first out) 先进先出缓存.
static <K,V> LFUCache<K,V>	newLFUCache(int capacity) 创建LFU(least frequently used) 最少使用率缓存.
static <K,V> LFUCache<K,V>	newLFUCache(int capacity, long timeout) 创建LFU(least frequently used) 最少使用率缓存.
static <K,V> LRUCache<K,V>	newLRUCache(int capacity) 创建LRU (least recently used)最近最久未使用缓存.
static <K,V> LRUCache<K,V>	newLRUCache(int capacity, long timeout) 创建LRU (least recently used)最近最久未使用缓存.
static <K,V> NoCache<K,V>	newNoCache() 创建无缓存实现.
static <K,V> TimedCache<K,V>	newTimedCache(long timeout) 创建定时缓存.
static <K,V> TimedCache<K,V>	newTimedCache(long timeout, long schedulePruneDelay) 创建定时缓存，通过定时任务自动清除过期缓存对象
static <K,V> WeakCache<K,V>	newWeakCache(long timeout) 创建弱引用缓存.

Methods inherited from class java.lang.Object

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

Constructor Detail

CacheUtil

public CacheUtil()

Method Detail

newFIFOCache

public static <K,V> FIFOCache<K,V> newFIFOCache(int capacity,
                                                long timeout)

创建FIFO(first in first out) 先进先出缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

timeout - 过期时长，单位：毫秒

Returns:

FIFOCache

newFIFOCache

public static <K,V> FIFOCache<K,V> newFIFOCache(int capacity)

创建FIFO(first in first out) 先进先出缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

Returns:

FIFOCache

newLFUCache

public static <K,V> LFUCache<K,V> newLFUCache(int capacity,
                                              long timeout)

创建LFU(least frequently used) 最少使用率缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

timeout - 过期时长，单位：毫秒

Returns:

LFUCache

newLFUCache

public static <K,V> LFUCache<K,V> newLFUCache(int capacity)

创建LFU(least frequently used) 最少使用率缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

Returns:

LFUCache

newLRUCache

public static <K,V> LRUCache<K,V> newLRUCache(int capacity,
                                              long timeout)

创建LRU (least recently used)最近最久未使用缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

timeout - 过期时长，单位：毫秒

Returns:

LRUCache

newLRUCache

public static <K,V> LRUCache<K,V> newLRUCache(int capacity)

创建LRU (least recently used)最近最久未使用缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

capacity - 容量

Returns:

LRUCache

newTimedCache

public static <K,V> TimedCache<K,V> newTimedCache(long timeout,
                                                  long schedulePruneDelay)

创建定时缓存，通过定时任务自动清除过期缓存对象

Type Parameters:

K - Key类型

V - Value类型

Parameters:

timeout - 过期时长，单位：毫秒

schedulePruneDelay - 间隔时长，单位毫秒

Returns:

TimedCache

Since:

5.8.28

newTimedCache

public static <K,V> TimedCache<K,V> newTimedCache(long timeout)

创建定时缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

timeout - 过期时长，单位：毫秒

Returns:

TimedCache

newWeakCache

public static <K,V> WeakCache<K,V> newWeakCache(long timeout)

创建弱引用缓存.

Type Parameters:

K - Key类型

V - Value类型

Parameters:

timeout - 过期时长，单位：毫秒

Returns:

WeakCache

Since:

3.0.7

newNoCache

public static <K,V> NoCache<K,V> newNoCache()

创建无缓存实现.

Type Parameters:

K - Key类型

V - Value类型

Returns:

NoCache