processhandler.java

网上购物系统,实现了一个具体的框架

/**
 * @name ProcessHandler.java
 * @version 1.0
 * @author Administrator/pan
 * @date 2009/2/11
 */
package com.digitstore.process;

import java.util.HashMap;

import java.util.Map;


public class ProcessHandler {
	//商品分类条目
	private ProductCatalog prodCata;
	//销售列表
	private Map<Customer, Sale> saleList;
	//构造函数
	public ProcessHandler(){
		saleList = new HashMap<Customer,Sale>();
		prodCata = new ProductCatalog();
	}
	
	public ProductCatalog getprodCata(){
		return prodCata;
	}
	
	//新建一个销售
	public void makeNewSale(Customer customer){
		Sale sale = new Sale(customer);
		saleList.put(customer, sale);
	}
	
	public void enterItem(Item item, int quantity, Customer customer){
		Sale sale = (Sale)saleList.get(customer);
		ProductSpecification prodSpec = prodCata.findProdSpec(item);
		sale.makeLineItem(prodSpec, quantity);
	}
	
	public void endSale(Customer customer){
		Sale sale = (Sale)saleList.get(customer);
		sale.setIscompleted(true);
	}
	
	public void writeOrderForm(Customer customer){
		Sale sale = (Sale)saleList.get(customer);
		sale.makePayment();
	}
	
	public Sale getSale(Customer customer){
		Sale sale = (Sale)saleList.get(customer);
		return sale;
	}

}