SignInfoFactory.java

package com.cheng.zenofdesignpatterns.patterns.flyweight.signup;

import java.util.HashMap;


/**
 * 报名信息简单工厂（静态工厂）
 */
public class SignInfoFactory {

	// 池容器
	private static HashMap<String,SignInfo> pool = new HashMap<String,SignInfo>();
	
	// 报名信息的对象工厂
	@Deprecated
	public static SignInfo getSignInfo(){
		return new SignInfo();
	}
	
	// 从池中获得对象
	public static SignInfo getSignInfo(String key){
		// 设置返回对象
		SignInfo result = null;
		// 池中没有该对象，则建立，并放入池中
		if(!pool.containsKey(key)){
			System.out.println(key + "----建立对象，并放置到池中");
			result = new SignInfo4Pool(key);
			pool.put(key, result);
		}else{
			result = pool.get(key);
			System.out.println(key +"---直接从直池中取得");
		}
		return result;
	}
}