com.fr.third.jgroups.util

类 ExpiryCache<K>

java.lang.Object

com.fr.third.jgroups.util.ExpiryCache<K>

public class ExpiryCache<K>
extends java.lang.Object

Cache which maintains timestamps for keys, and methods to remove/replace expired keys. Compared to AgeOutCache, ExpiryCache doesn't require a timer task to run

版本:

3.3

作者:

Bela Ban

字段概要

字段

限定符和类型	字段和说明
protected java.util.concurrent.ConcurrentMap<K,java.lang.Long>	map
protected long	timeout

构造器概要

构造器

构造器和说明
ExpiryCache(long timeout) Creates a new instance

方法概要

方法

限定符和类型	方法和说明
boolean	addIfAbsentOrExpired(K key)
void	clear()
boolean	contains(K key)
long	getTimeout()
boolean	hasExpired(K key)
protected static boolean	hasExpired(long val)
void	remove(K key)
void	removeAll(java.util.Collection<K> keys)
int	removeExpiredElements()
void	setTimeout(long timeout)
int	size()
java.lang.String	toString()

从类继承的方法 java.lang.Object

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

字段详细资料

timeout

protected long timeout

map

protected final java.util.concurrent.ConcurrentMap<K,java.lang.Long> map

构造器详细资料

ExpiryCache

public ExpiryCache(long timeout)

Creates a new instance

参数:

timeout - Timeout in ms

方法详细资料

getTimeout

public long getTimeout()

setTimeout

public void setTimeout(long timeout)

addIfAbsentOrExpired

public boolean addIfAbsentOrExpired(K key)

contains

public boolean contains(K key)

hasExpired

public boolean hasExpired(K key)

remove

public void remove(K key)

removeAll

public void removeAll(java.util.Collection<K> keys)

removeExpiredElements

public int removeExpiredElements()

clear

public void clear()

size

public int size()

toString

public java.lang.String toString()

覆盖:

toString 在类中 java.lang.Object

hasExpired

protected static boolean hasExpired(long val)