compositepricingstrategy.java

网上购物系统,实现了一个具体的框架

/**
 * @name CompositePricingStrategy.java
 * @author Administrator/pan
 * @version 1.1
 * @date 2009/2/16
 * 
 */
package com.digitstore.process.server.sale;

import java.util.ArrayList;
import java.util.List;

import com.digitstore.process.sale.Sale;

public abstract class CompositePricingStrategy implements ISalePricingStrategy {
	
	protected List<ISalePricingStrategy> pricingStrategies = new ArrayList<ISalePricingStrategy>();
	
	//将各种定价策略添加到列表中
	public void add(ISalePricingStrategy s){
		pricingStrategies.add(s);
	}
	
	//返回最终的定价
	public abstract double getTotal(Sale sale);


}