com.alibaba.nacos.common.cache

接口 Cache<K,V>

所有已知实现类:

AutoExpireCache, LruCache, SimpleCache, SynchronizedCache

public interface Cache<K,V>

Cache method collection definition.

作者:

zzq

方法概要

限定符和类型	方法和说明
void	clear() Clear the entire cache.
V	get(K key) Take the corresponding value from the cache according to the cache key.
V	get(K key, Callable<? extends V> call) Get the value in the cache according to the primary key, and put it into the cache after processing by the function.
int	getSize() Returns the number of key-value pairs in the cache.
void	put(K key, V val) Cache a pair of key value.
V	remove(K key) Take the corresponding value from the cache according to the cache key, and remove this record from the cache.

方法详细资料

put

void put(K key,
         V val)

Cache a pair of key value. If the key value already exists, the value will be overwritten.

参数:

key - cache key

val - cache value

get

V get(K key)

Take the corresponding value from the cache according to the cache key.

参数:

key - cache key

返回:

cache value

get

V get(K key,
      Callable<? extends V> call)
throws Exception

Get the value in the cache according to the primary key, and put it into the cache after processing by the function.

参数:

key - cache key

call - a function, the return value of the function will be updated to the cache

返回:

cache value

抛出:

Exception - callable function interface throw exception

remove

V remove(K key)

Take the corresponding value from the cache according to the cache key, and remove this record from the cache.

参数:

key - cache key

返回:

cache value

clear

void clear()

Clear the entire cache.

getSize

int getSize()

Returns the number of key-value pairs in the cache.

返回:

number of key-value pairs