cn.hutool.cache.impl

Class TimedCache<K,V>

java.lang.Object

cn.hutool.cache.impl.AbstractCache<K,V>

cn.hutool.cache.impl.ReentrantCache<K,V>

cn.hutool.cache.impl.TimedCache<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Cache<K,V>, Serializable, Iterable<V>

Direct Known Subclasses:

WeakCache

public class TimedCache<K,V>
extends ReentrantCache<K,V>

定时缓存
此缓存没有容量限制，对象只有在过期后才会被移除

Author:

Looly

See Also:

Serialized Form

Field Summary

Fields inherited from class cn.hutool.cache.impl.ReentrantCache

lock

Fields inherited from class cn.hutool.cache.impl.AbstractCache

cacheMap, capacity, existCustomTimeout, hitCount, keyLockMap, listener, missCount, timeout

Constructor Summary

Constructors

Constructor and Description
TimedCache(long timeout) 构造
TimedCache(long timeout, Map<Mutable<K>,CacheObj<K,V>> map) 构造

Method Summary

Modifier and Type	Method and Description
void	cancelPruneSchedule() 取消定时清理
protected int	pruneCache() 清理过期对象
void	schedulePrune(long delay) 定时清理

Methods inherited from class cn.hutool.cache.impl.ReentrantCache

cacheObjIterator, clear, containsKey, get, get, prune, put, remove, toString

Methods inherited from class cn.hutool.cache.impl.AbstractCache

cacheObjIter, capacity, get, getHitCount, getMissCount, getWithoutLock, isEmpty, isFull, isPruneExpiredActive, iterator, keySet, onRemove, put, putWithoutLock, removeWithoutLock, setListener, size, timeout

Methods inherited from class java.lang.Object

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

Methods inherited from interface cn.hutool.cache.Cache

get, get

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

TimedCache

public TimedCache(long timeout)

构造

Parameters:

timeout - 超时（过期）时长，单位毫秒

TimedCache

public TimedCache(long timeout,
                  Map<Mutable<K>,CacheObj<K,V>> map)

构造

Parameters:

timeout - 过期时长

map - 存储缓存对象的map

Method Detail

pruneCache

protected int pruneCache()

清理过期对象

Specified by:

pruneCache in class AbstractCache<K,V>

Returns:

清理数

schedulePrune

public void schedulePrune(long delay)

定时清理

Parameters:

delay - 间隔时长，单位毫秒

cancelPruneSchedule

public void cancelPruneSchedule()

取消定时清理