org.tio.utils.cache

Class TimedCache<K extends Serializable,V extends Serializable>

java.lang.Object

org.tio.utils.cache.AbstractCache<K,V>

org.tio.utils.cache.ReentrantCache<K,V>

org.tio.utils.cache.TimedCache<K,V>

Type Parameters:

K - 键类型

V - 值类型

All Implemented Interfaces:

Closeable, Serializable, AutoCloseable, Cache<K,V>

public class TimedCache<K extends Serializable,V extends Serializable>
extends ReentrantCache<K,V>
implements Closeable

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, L.cm

See Also:

Serialized Form

Field Summary

Fields inherited from class org.tio.utils.cache.ReentrantCache

lock

Fields inherited from class org.tio.utils.cache.AbstractCache

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

Constructor Summary

Constructors

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

Method Summary

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

Methods inherited from class org.tio.utils.cache.ReentrantCache

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

Methods inherited from class org.tio.utils.cache.AbstractCache

cacheObjIter, capacity, get, get, getHitCount, getMissCount, getWithoutLock, isEmpty, isFull, isPruneExpiredActive, 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 org.tio.utils.cache.Cache

get, get, getAndRefresh, getAndRefresh

Constructor Detail

TimedCache

public TimedCache(long ttl)

构造

Parameters:

ttl - 超时（过期）时长，单位毫秒

TimedCache

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

构造

Parameters:

ttl - 过期时长，单位为毫秒

map - 存储缓存对象的map

TimedCache

public TimedCache(long ttl,
                  long cleanupMs)

构造

Parameters:

ttl - 过期时长，单位为毫秒

cleanupMs - 清理周期，单位为毫秒

TimedCache

public TimedCache(long ttl,
                  long cleanupMs,
                  Map<K,CacheObj<K,V>> map)

构造

Parameters:

ttl - 过期时长，单位为毫秒

cleanupMs - 清理周期

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 extends Serializable,V extends Serializable>

Returns:

清理数

schedulePrune

protected 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

close

public void close()
           throws IOException

Specified by:

close in interface Closeable

Specified by:

close in interface AutoCloseable

Throws:

IOException