top.onceio.core.cache

接口 Cache

所有已知实现类:

FIFOMemoryCache

public interface Cache

Interface that defines common cache operations. Note: Due to the generic use of caching, it is recommended that implementations allow storage of null values (for example to cache methods that return null).

从以下版本开始:

3.1

作者:

Costin Leau, Juergen Hoeller, Stephane Nicoll

方法概要

限定符和类型	方法和说明
void	clear() Remove all mappings from the cache.
void	evict(Object key) Evict the mapping for this key from this cache if it is present.
<T> T	get(Object key, Class<T> type)
String	getName()
void	put(Object key, Object value) Associate the specified value with the specified key in this cache.

方法详细资料

getName

String getName()

返回:

the cache name.

get

<T> T get(Object key,
          Class<T> type)

类型参数:

T - 泛型

参数:

key - 对象唯一标识

type - 对象的类型

返回:

返回指定类型的指定Key的缓存对象，如果没有则返回null值

put

void put(Object key,
         Object value)

Associate the specified value with the specified key in this cache.

If the cache previously contained a mapping for this key, the old value is replaced by the specified value.

参数:

key - the key with which the specified value is to be associated

value - the value to be associated with the specified key

evict

void evict(Object key)

Evict the mapping for this key from this cache if it is present.

参数:

key - the key whose mapping is to be removed from the cache

clear

void clear()

Remove all mappings from the cache.