com.alibaba.nacos.common.cache.decorators

类 LruCache<K,V>

java.lang.Object

com.alibaba.nacos.common.cache.decorators.LruCache<K,V>

所有已实现的接口:

Cache<K,V>

public class LruCache<K,V>
extends Object
implements Cache<K,V>

A wrapper that lru cache.

作者:

zzq

构造器概要

构造器

构造器和说明
LruCache(Cache<K,V> delegate, int size)

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.
void	setSize(int size)

从类继承的方法 java.lang.Object

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

构造器详细资料

LruCache

public LruCache(Cache<K,V> delegate,
                int size)

方法详细资料

getSize

public int getSize()

从接口复制的说明: Cache

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

指定者:

getSize 在接口中 Cache<K,V>

返回:

number of key-value pairs

setSize

public void setSize(int size)

put

public void put(K key,
                V val)

从接口复制的说明: Cache

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

指定者:

put 在接口中 Cache<K,V>

参数:

key - cache key

val - cache value

get

public V get(K key)

从接口复制的说明: Cache

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

指定者:

get 在接口中 Cache<K,V>

参数:

key - cache key

返回:

cache value

get

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

从接口复制的说明: Cache

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

指定者:

get 在接口中 Cache<K,V>

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

public V remove(K key)

从接口复制的说明: Cache

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

指定者:

remove 在接口中 Cache<K,V>

参数:

key - cache key

返回:

cache value

clear

public void clear()

从接口复制的说明: Cache

Clear the entire cache.

指定者:

clear 在接口中 Cache<K,V>