processhandler.java

网上购物系统,实现了一个具体的框架

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

import java.util.HashMap;
import java.util.Map;

import com.digitstore.process.domain.Store;
import com.digitstore.process.manageruser.Customer;
import com.digitstore.process.sale.Sale;
import com.digitstore.process.server.ProductServiceFactory;

public class ProcessHandler {
	//销售列表
	private Map<String, Sale> salesList;
	//构造函数
	public ProcessHandler(){
		salesList = new HashMap<String,Sale>();
	}
	
	
	//新建一个销售
	public void makeNewSale(String customerID){
		Sale sale = new Sale(customerID);
		if(!salesList.containsKey(customerID))
			salesList.put(customerID, sale);
	}
	//购买一个商品，默认数值是1
	public void enterItem(String itemID, String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.makeLineItem(itemID);
	}
	
	//更新指定商品的数量
	public void setQuantityByItem(String itemID, int quantity, String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.setQuntitySLI(itemID, quantity);
	}
	
	//结束购物
	public void endSale(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.setIscompleted(true);
	}
	
	//填写订单表格
	public void writeOrderForm(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.makeOrderForm();
	}
	
	//使用货币支付已订购的商品
	public void makeCashPayment(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.makeCashPayment(customerID);
	}
	
	//使用信用卡支付已订购的商品
	public void makeCreditPayment(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.makeCreditPayment(customerID);
	}
	
	//使用虚拟货币支付已订购的商品
	public void makeVirtualMoneyPayment(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		sale.makeVirtualPayment(customerID);
	}
	
	//返回该顾客的本次购物销售
	public Sale getSale(String customerID){
		Sale sale = (Sale)salesList.get(customerID);
		return sale;
	}
	
	//输入顾客的折扣，为顾客的折扣定价策略提供方法
	public void enterCustomerForDistcount(String customerID){
		Store store = ProductServiceFactory.getInstance().getStore();
		Customer customer = store.getCustomerByID(customerID);
		Sale sale = (Sale)salesList.get(customerID);
		sale.enterCustomerForDiscount(customer);
	}


}