LRUcache的一种实现

package com.ruijie.spl.usermanage.cache;

import java.util.Collection;
import java.util.LinkedHashMap;
import java.util.Map;

public class LRUCache<K,V> {
	
	int cacheSize = 0;
	float loadFactor = 0.75f;
	LinkedHashMap<K,V> map;

	public LRUCache(int cacheSize) {
		this.cacheSize = cacheSize;
		map = new LinkedHashMap<K,V>(cacheSize, loadFactor, true) {
			private static final long serialVersionUID = -1496596499685247267L;
			protected boolean removeEldestEntry(Map.Entry<K,V> eldest) {
				return size() > LRUCache.this.cacheSize;
			}
		};
	}
	public synchronized void clear(){
		map.clear();
	}
	public synchronized V get(K k){
		return map.get(k);
	}
	public synchronized void put(K k, V v){
		map.put(k,v);
	}
	public synchronized V remove(K k){
		return map.remove(k);
	}
	public synchronized int size(){
		return map.size();
	}
	public synchronized Collection<?> values(){
		return map.values();
	}
	public synchronized void addAll(Map<K,V> m){
		map.putAll(m);
	}	

}