org.tio.utils.cache.guava

Class GuavaCache

java.lang.Object

org.tio.utils.cache.AbsCache

org.tio.utils.cache.guava.GuavaCache

All Implemented Interfaces:

ICache

public class GuavaCache
extends AbsCache

Author:

tanyaowu 2017年8月5日 上午10:16:26

Nested Class Summary

Nested classes/interfaces inherited from interface org.tio.utils.cache.ICache

ICache.NullClass

Field Summary

Fields

Modifier and Type	Field and Description
static Map<String,GuavaCache>	map

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

cacheName

Fields inherited from interface org.tio.utils.cache.ICache

MAX_EXPIRE_IN_LOCAL, NULL_OBJ

Method Summary

Modifier and Type	Method and Description
Serializable	_get(String key)
ConcurrentMap<String,Serializable>	asMap()
void	clear() 清空所有缓存
static GuavaCache	getCache(String cacheName)
Collection<String>	keys() 获取所有的key
void	put(String key, Serializable value) 将key value保存到缓存中
void	putTemporary(String key, Serializable value) 临时添加一个值，用于防止缓存穿透攻击
static GuavaCache	register(String cacheName, Long timeToLiveSeconds, Long timeToIdleSeconds) timeToLiveSeconds和timeToIdleSeconds不允许同时为null
static GuavaCache	register(String cacheName, Long timeToLiveSeconds, Long timeToIdleSeconds, com.google.common.cache.RemovalListener<String,Serializable> removalListener)
void	remove(String key) 删除一个key
long	size()
long	ttl(String key) 对象还会存活多久。

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

get, get, getCacheName, getTimeToIdleSeconds, getTimeToLiveSeconds, setCacheName, setTimeToIdleSeconds, setTimeToLiveSeconds

Methods inherited from class java.lang.Object

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

Field Detail

map

public static Map<String,GuavaCache> map

Method Detail

getCache

public static GuavaCache getCache(String cacheName)

register

public static GuavaCache register(String cacheName,
                                  Long timeToLiveSeconds,
                                  Long timeToIdleSeconds)

timeToLiveSeconds和timeToIdleSeconds不允许同时为null

Parameters:

cacheName -

timeToLiveSeconds -

timeToIdleSeconds -

Returns:

register

public static GuavaCache register(String cacheName,
                                  Long timeToLiveSeconds,
                                  Long timeToIdleSeconds,
                                  com.google.common.cache.RemovalListener<String,Serializable> removalListener)

clear

public void clear()

Description copied from interface: ICache

清空所有缓存

_get

public Serializable _get(String key)

Specified by:

_get in class AbsCache

keys

public Collection<String> keys()

Description copied from interface: ICache

获取所有的key

Returns:

put

public void put(String key,
                Serializable value)

Description copied from interface: ICache

将key value保存到缓存中

putTemporary

public void putTemporary(String key,
                         Serializable value)

Description copied from interface: ICache

临时添加一个值，用于防止缓存穿透攻击

remove

public void remove(String key)

Description copied from interface: ICache

删除一个key

asMap

public ConcurrentMap<String,Serializable> asMap()

Returns:

size

public long size()

Returns:

ttl

public long ttl(String key)

Description copied from interface: ICache

对象还会存活多久。

Returns:

currTime in milliseconds -2 if the key does not exist. -1 if the key exists but has no associated expire.