程序包 net.oschina.j2cache

接口 Cache

所有已知子接口:

Level1Cache, Level2Cache

所有已知实现类:

CaffeineCache, EhCache, EhCache3, LettuceCache, LettuceGenericCache, LettuceHashCache, MemCache, NullCache, RedisGenericCache, RedisHashCache

public interface Cache

Cache Data Operation Interface

作者:

Winter Lau(javayou@gmail.com)

方法概要

修饰符和类型	方法	说明
void	clear()	Clear the cache
void	evict(String... keys)	Remove items from the cache
default boolean	exists(String key)	判断缓存是否存在
Object	get(String key)	Get an item from the cache, nontransactionally
Map<String,Object>	get(Collection<String> keys)	批量获取缓存对象
Collection<String>	keys()	Return all keys
void	put(String key, Object value)	Add an item to the cache, nontransactionally, with failfast semantics
void	put(Map<String,Object> elements)	批量插入数据

方法详细资料

get

Object get(String key)

Get an item from the cache, nontransactionally

参数:

key - cache key

返回:

the cached object or null

get

Map<String,Object> get(Collection<String> keys)

批量获取缓存对象

参数:

keys - cache keys

返回:

return key-value objects

exists

default boolean exists(String key)

判断缓存是否存在

参数:

key - cache key

返回:

true if key exists

put

void put(String key,
 Object value)

Add an item to the cache, nontransactionally, with failfast semantics

参数:

key - cache key

value - cache value

put

void put(Map<String,Object> elements)

批量插入数据

参数:

elements - objects to be put in cache

keys

Collection<String> keys()

Return all keys

返回:

返回键的集合

evict

void evict(String... keys)

Remove items from the cache

参数:

keys - Cache key

clear

void clear()

Clear the cache