cn.orionsec.kit.lang.define.cache

Class LruCache<K,V>

java.lang.Object

java.util.AbstractMap<K,V>

java.util.HashMap<K,V>

java.util.LinkedHashMap<K,V>

cn.orionsec.kit.lang.define.cache.LruCache<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>

public class LruCache<K,V>
extends LinkedHashMap<K,V>

LRU 缓存 最先进最先淘汰

Since:

2019/8/22 20:54

Version:

1.0.0

Author:

Jiahang Li

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class java.util.AbstractMap

AbstractMap.SimpleEntry<K,V>, AbstractMap.SimpleImmutableEntry<K,V>

Constructor Summary

Constructors

Constructor and Description
LruCache()
LruCache(int maxCapacity)

Method Summary

Modifier and Type	Method and Description
void	clear()
boolean	containsKey(Object key)
static <K,V> LruCache<K,V>	create()
static <K,V> LruCache<K,V>	create(int maxCapacity)
V	get(Object key)
int	getMaxCapacity()
V	put(K key, V value)
V	remove(Object key)
protected boolean	removeEldestEntry(Map.Entry<K,V> eldest)
void	setMaxCapacity(int maxCapacity)
int	size()

Methods inherited from class java.util.LinkedHashMap

containsValue, entrySet, forEach, getOrDefault, keySet, replaceAll, values

Methods inherited from class java.util.HashMap

clone, compute, computeIfAbsent, computeIfPresent, isEmpty, merge, putAll, putIfAbsent, remove, replace, replace

Methods inherited from class java.util.AbstractMap

equals, hashCode, toString

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Map

compute, computeIfAbsent, computeIfPresent, equals, hashCode, isEmpty, merge, putAll, putIfAbsent, remove, replace, replace

Constructor Detail

LruCache

public LruCache()

LruCache

public LruCache(int maxCapacity)

Method Detail

create

public static <K,V> LruCache<K,V> create()

create

public static <K,V> LruCache<K,V> create(int maxCapacity)

removeEldestEntry

protected boolean removeEldestEntry(Map.Entry<K,V> eldest)

Overrides:

removeEldestEntry in class LinkedHashMap<K,V>

containsKey

public boolean containsKey(Object key)

Specified by:

containsKey in interface Map<K,V>

Overrides:

containsKey in class HashMap<K,V>

get

public V get(Object key)

Specified by:

get in interface Map<K,V>

Overrides:

get in class LinkedHashMap<K,V>

put

public V put(K key,
             V value)

Specified by:

put in interface Map<K,V>

Overrides:

put in class HashMap<K,V>

remove

public V remove(Object key)

Specified by:

remove in interface Map<K,V>

Overrides:

remove in class HashMap<K,V>

size

public int size()

Specified by:

size in interface Map<K,V>

Overrides:

size in class HashMap<K,V>

clear

public void clear()

Specified by:

clear in interface Map<K,V>

Overrides:

clear in class LinkedHashMap<K,V>

getMaxCapacity

public int getMaxCapacity()

setMaxCapacity

public void setMaxCapacity(int maxCapacity)