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

限定符和类型	方法和说明
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
Map<String,Object>	get(Collection<String> keys) 批量获取缓存对象
Object	get(String key) Get an item from the cache, nontransactionally
Collection<String>	keys() Return all keys
void	put(Map<String,Object> elements) 批量插入数据
void	put(String key, Object value) Add an item to the cache, nontransactionally, with failfast semantics

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