Package org.miaixz.bus.core.cache.provider

Class WeakCache<K,V>

java.lang.Object

org.miaixz.bus.core.cache.provider.AbstractCache<K,V>

org.miaixz.bus.core.cache.provider.StampedCache<K,V>

org.miaixz.bus.core.cache.provider.TimedCache<K,V>

org.miaixz.bus.core.cache.provider.WeakCache<K,V>

Type Parameters:

K - 键

V - 值

All Implemented Interfaces:

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

Java 17+

Author:

Kimi Liu

See Also:

• Serialized Form

Field Summary

Fields inherited from class org.miaixz.bus.core.cache.provider.StampedCache

lock

Fields inherited from class org.miaixz.bus.core.cache.provider.AbstractCache

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

Constructor Summary

Constructors

Constructor	Description
WeakCache(long timeout)	构造

Method Summary

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

Methods inherited from class org.miaixz.bus.core.cache.provider.TimedCache

cancelPruneSchedule, pruneCache, schedulePrune

Methods inherited from class org.miaixz.bus.core.cache.provider.StampedCache

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

Methods inherited from class org.miaixz.bus.core.cache.provider.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 org.miaixz.bus.core.cache.Cache

get, get

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Details

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 Details

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