sale.java

网上购物系统,实现了一个具体的框架

/**
 * @name Sale.java
 * @version 1.1
 * @author Administrator/pan
 * @date 2009/2/11
 */
package com.digitstore.process.sale;

import java.io.Serializable;
import java.util.Date;

import com.digitstore.process.manageruser.Customer;
import com.digitstore.process.sale.Cart;
import com.digitstore.process.OrderForm;
import com.digitstore.process.server.PricingStrategyFactory;
import com.digitstore.process.server.sale.CashPayment;
import com.digitstore.process.server.sale.CompositeBestForCustomerPricingStrategy;
import com.digitstore.process.server.sale.CreditPayment;
import com.digitstore.process.server.sale.Payment;
import com.digitstore.process.server.sale.PercentDiscountPricingStrategy;
import com.digitstore.process.server.sale.VirtualMoneyPayment;

public class Sale implements Serializable {
	//顾客编号
	private String customerID;
	//时间
	private Date date;
	//是否购物完成
	private boolean isCompleted;
	//所购商品的总价
	private double total = 0;
	//购物车
	private Cart cart;
	//账单
	private Payment payment;
	//订单
	private OrderForm orderForm;
	//获取顾客最有组合定价策略
	private CompositeBestForCustomerPricingStrategy compBFCPstra = PricingStrategyFactory.getInstance().getCompBestCustPriStrategy();
	
	
	//构造函数
	public Sale(String customerID){
		date = new Date();
		isCompleted = false;
		cart = new Cart();
		this.customerID = customerID;
	}
	//对应的get/set方法
	public String getCustomerID(){
		return customerID;
	}
	
	public void setCustomerID(String customerID){
		this.customerID =  customerID;
	}
	
	public Date getDate(){
		return date;
	}
	
	public void setDate(Date date){
		this.date = date;
	}
	
	public boolean getIscompleted(){
		return isCompleted;
	}
	
	public void setIscompleted(boolean isCompleted){
		this.isCompleted = isCompleted;
	}
	
	public Cart getCart(){
		return cart;
	}
	
	public void setCart(Cart cart){
		this.cart = cart;
	}
	
	public Payment getPayment(){
		return payment;
	}
	
	public void setPayment(Payment payment){
		this.payment = payment;
	}
	
	public OrderForm getOrderForm(){
		return orderForm;
	}
	
	public void setOrderForm(OrderForm orderForm){
		this.orderForm = orderForm;
	}
	
	//购物完毕的设置方法
	public void becomeCompleted(){
		this.isCompleted = true;
	}
	
	//添加物品,默认是添加1
	public void makeLineItem(String itemID){
		cart.addSalesLineItem(itemID);
	}
	//移除商品
	public void removeSalesLineItem(String itemID){
		cart.removeSalesLineItem(itemID);
	}
	
	//更新指定的SalesLineItem的商品数量
	public void setQuntitySLI(String itemID, int quantity){
		cart.setQuntitySLI(itemID, quantity);
	}
	
	//用货币支付商品款项
	public void makeCashPayment(String customerID){
		payment = new CashPayment(customerID, total);
	}
	
	//用信用卡支付商品货款
	public void makeCreditPayment(String customerID){
		payment = new CreditPayment(customerID, total);
	}
	
	//使用虚拟货币支付
	public void makeVirtualPayment(String customerID){
		payment = new VirtualMoneyPayment(customerID, total);
	}
	
	//填写表单
	public void makeOrderForm(){
		orderForm = new OrderForm();
	}
	//算总账，没有折扣
	public double getTotal(){
		//设置总价格
		setTotal(cart.getTotal());
		return total;
	}
	//算总账,有折扣
	public double getTotal(Sale sale){
		//设置总价格
		setTotal(compBFCPstra.getTotal(sale));
		return  total;
	}
	//设置商品总价格
	public void setTotal(double total){
		this.total = total;
	}
	
	//输入用户类型，计算本次折扣
	public void enterCustomerForDiscount(Customer customer){
		PercentDiscountPricingStrategy percDPStrategy = PricingStrategyFactory.getInstance().getPercDisPriStrategy(); 
		percDPStrategy.setPercentage(customer.getDiscount());
		compBFCPstra.add(percDPStrategy);
	}

}