org.apache.dubbo.common.utils

Class LFUCache<K,V>

java.lang.Object

org.apache.dubbo.common.utils.LFUCache<K,V>

public class LFUCache<K,V>
extends Object

Constructor Summary

Constructors

Constructor and Description
LFUCache()
LFUCache(int maxCapacity, float evictionFactor) Constructs and initializes cache with specified capacity and eviction factor.

Method Summary

Modifier and Type	Method and Description
V	get(K key)
int	getCapacity()
int	getSize() Returns cache current size.
V	put(K key, V value)
V	remove(K key)

Methods inherited from class java.lang.Object

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

Constructor Detail

LFUCache

public LFUCache()

LFUCache

public LFUCache(int maxCapacity,
                float evictionFactor)

Constructs and initializes cache with specified capacity and eviction factor. Unacceptable parameter values followed with IllegalArgumentException.

Parameters:

maxCapacity - cache max capacity

evictionFactor - cache proceedEviction factor

Method Detail

getCapacity

public int getCapacity()

put

public V put(K key,
             V value)

remove

public V remove(K key)

get

public V get(K key)

getSize

public int getSize()

Returns cache current size.

Returns:

cache size