cache.java

Javabean+sevrlet+jsp聊天原文件

/* 
 * Created on 2006-2-5
 * Last modified on 2006-2-5
 * Powered by YeQiangWei.com
 */
package com.yeqiangwei.club.cache;

import java.util.Map;

/**
 * Implementors define a caching algorithm. All implementors
 * <b>must</b> be threadsafe.
 */
public interface Cache {
	
	public Object read(Object key);
	public Object get(Object key);
	public void put(Object key, Object value);
	public void update(Object key, Object value);
	public void remove(Object key);
	public void clear();
	public void destroy();
	public void lock(Object key);
	public void unlock(Object key);
	public long nextTimestamp();
	public int getTimeout();
	public String getRegionName();
	public long getMemoryStoreSize();
	public long getDiskStoreSize();
	public int getElementTotal(); //缓存对象总数
	public int getElementCountInMemory(); //内存缓存对象个数
	public int getElementCountOnDisk(); //硬盘缓存对象个数
	public String toString();
	public Map toMap();
	public Map getAll();
	
}