cn.hutool.cache.impl

Class WeakCache<K,V>

java.lang.Object

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

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

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

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

Type Parameters:

K - 键

V - 值

All Implemented Interfaces:

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

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

弱引用缓存
对于一个给定的键，其映射的存在并不阻止垃圾回收器对该键的丢弃，这就使该键成为可终止的，被终止，然后被回收。
丢弃某个键时，其条目从映射中有效地移除。

Since:

3.0.7

Author:

Looly, looly

See Also:

Serialized Form

Field Summary

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

lock

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

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

Constructor Summary

Constructors

Constructor and Description
WeakCache(long timeout) 构造

Method Summary

Modifier and Type	Method and Description
WeakCache<K,V>	setListener(CacheListener<K,V> listener) 设置监听

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

cancelPruneSchedule, pruneCache, schedulePrune

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

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

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

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

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

WeakCache

public WeakCache(long timeout)

构造

Parameters:

timeout - 超时时常，单位毫秒，-1或0表示无限制

Method Detail

setListener

public WeakCache<K,V> setListener(CacheListener<K,V> listener)

Description copied from class: AbstractCache

设置监听

Specified by:

setListener in interface Cache<K,V>

Overrides:

setListener in class AbstractCache<K,V>

Parameters:

listener - 监听

Returns:

this