org.tinygroup.cache.jcs

Class JcsCache

java.lang.Object

org.tinygroup.cache.jcs.JcsCache

All Implemented Interfaces:

Cache

public class JcsCache
extends Object
implements Cache

Constructor Summary

Constructors

Constructor and Description
JcsCache()

Method Summary

Modifier and Type	Method and Description
void	cleanGroup(String group) 清除指定组下的所有缓存
void	clear() 清除缓存实例下所有缓存内容
void	destroy() 销毁缓存实例相关的资源
int	freeMemoryElements(int numberToFree) 释放指定数目的缓存内容，各个第三方缓存实现机制可能不一样
Object	get(String key) 获取key对应的缓存值
Object[]	get(String[] keys) 分别获取key数组中对应的缓存值
Object	get(String groupName, String key) 从指定组中的缓存中获取key对应的缓存值
Object[]	get(String group, String[] keys) 从指定组中的缓存中分别获取keys对应的缓存值，以值数组形式返回
Set<String>	getGroupKeys(String group) 获取指定组下所有缓存key列表
String	getStats() 返回次数缓存的状态快照
void	init(String region) 缓存区域初始化
void	put(String key, Object object) 缓存内容存储接口
void	put(String groupName, String key, Object object) 缓存内容存储接口
void	putSafe(String key, Object object) 缓存内容存储接口,与put不同的是，此方法会先根据key判断缓存是否已经存在
void	remove(String key) 移除key对应的缓存内容
void	remove(String[] keys) 移除缓存key数组对应的缓存内容
void	remove(String group, String key) 移除指定组下缓存名称为key的缓存
void	remove(String group, String[] keys) 移除指定组下缓存key数组对应的缓存内容
void	setCacheManager(CacheManager manager) 设置此缓存关联的缓存管理器

Methods inherited from class java.lang.Object

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

Constructor Detail

JcsCache

public JcsCache()

Method Detail

get

public Object get(String key)

Description copied from interface: Cache

获取key对应的缓存值

Specified by:

get in interface Cache

Parameters:

key - 缓存key

Returns:

返回key对应的缓存值

put

public void put(String key,
                Object object)

Description copied from interface: Cache

缓存内容存储接口

Specified by:

put in interface Cache

Parameters:

key - 缓存名称

putSafe

public void putSafe(String key,
                    Object object)

Description copied from interface: Cache

缓存内容存储接口,与put不同的是，此方法会先根据key判断缓存是否已经存在

Specified by:

putSafe in interface Cache

put

public void put(String groupName,
                String key,
                Object object)

Description copied from interface: Cache

缓存内容存储接口

Specified by:

put in interface Cache

Parameters:

groupName - 缓存分组

key - 缓存名称

object - 缓存值

get

public Object get(String groupName,
                  String key)

Description copied from interface: Cache

从指定组中的缓存中获取key对应的缓存值

Specified by:

get in interface Cache

key - 缓存名称

Returns:

缓存值

getGroupKeys

public Set<String> getGroupKeys(String group)

Description copied from interface: Cache

获取指定组下所有缓存key列表

Specified by:

getGroupKeys in interface Cache

Parameters:

group - 缓存分组

Returns:

返回缓存key列表

cleanGroup

public void cleanGroup(String group)

Description copied from interface: Cache

清除指定组下的所有缓存

Specified by:

cleanGroup in interface Cache

Parameters:

group - 缓存分组

clear

public void clear()

Description copied from interface: Cache

清除缓存实例下所有缓存内容

Specified by:

clear in interface Cache

remove

public void remove(String key)

Description copied from interface: Cache

移除key对应的缓存内容

Specified by:

remove in interface Cache

Parameters:

key - 缓存名称

remove

public void remove(String group,
                   String key)

Description copied from interface: Cache

移除指定组下缓存名称为key的缓存

Specified by:

remove in interface Cache

Parameters:

group - 缓存分组

key - 缓存名称

getStats

public String getStats()

Description copied from interface: Cache

返回次数缓存的状态快照

Specified by:

getStats in interface Cache

Returns:

次数缓存状态组装成的字符串信息

freeMemoryElements

public int freeMemoryElements(int numberToFree)

Description copied from interface: Cache

释放指定数目的缓存内容，各个第三方缓存实现机制可能不一样

Specified by:

freeMemoryElements in interface Cache

Parameters:

numberToFree - 要释放的缓存数目

Returns:

真正被释放的缓存数目

init

public void init(String region)

Description copied from interface: Cache

缓存区域初始化

参考org.tinygroup.cache.CacheManager.createCache(region)

Specified by:

init in interface Cache

Parameters:

region - 缓存区域

destroy

public void destroy()

Description copied from interface: Cache

销毁缓存实例相关的资源

Specified by:

destroy in interface Cache

setCacheManager

public void setCacheManager(CacheManager manager)

Description copied from interface: Cache

设置此缓存关联的缓存管理器

Specified by:

setCacheManager in interface Cache

Parameters:

manager - 缓存管理器

get

public Object[] get(String[] keys)

Description copied from interface: Cache

分别获取key数组中对应的缓存值

Specified by:

get in interface Cache

Parameters:

keys - 缓存名称数组

Returns:

返回keys对应的缓存值数组

get

public Object[] get(String group,
                    String[] keys)

Description copied from interface: Cache

从指定组中的缓存中分别获取keys对应的缓存值，以值数组形式返回

Specified by:

get in interface Cache

keys - 缓存名称数组

Returns:

返回缓存值数组

remove

public void remove(String[] keys)

Description copied from interface: Cache

移除缓存key数组对应的缓存内容

Specified by:

remove in interface Cache

Parameters:

keys - 缓存key数组

remove

public void remove(String group,
                   String[] keys)

Description copied from interface: Cache

移除指定组下缓存key数组对应的缓存内容

Specified by:

remove in interface Cache

Parameters:

group - 缓存分组

keys - 缓存key数组