LRUCache (milky-common 1.0.13 API)

java.lang.Object
- java.util.AbstractMap<K,V>
- - java.util.HashMap<K,V>
  - - java.util.LinkedHashMap<K,V>
    - - cn.sliew.milky.common.cache.lru.LRUCache<K,V>

All Implemented Interfaces:

Serializable, Cloneable, Map<K,V>
```
public class LRUCache<K,V>
extends LinkedHashMap<K,V>
```
最常见的缓存实现方式，缺点是缺少缓存过期功能 dubbo的实现添加了并发访问的功能

See Also:

Serialized Form

Nested Class Summary
- Nested classes/interfaces inherited from class java.util.AbstractMap
  AbstractMap.SimpleEntry<K extends Object,V extends Object>, AbstractMap.SimpleImmutableEntry<K extends Object,V extends Object>

Constructor Summary

Constructors
Constructor Description

LRUCache()

LRUCache(int maxCapacity)

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`void`	`clear()`
`boolean`	`containsKey(Object key)`
`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
  - 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)
```