shopcart.java

达内Java培训实训项目ECPORT原码。 包括逐步优化的四个版本： 简单工厂模式实现 简单Spring-IoC实现 Spring声明式事务实现 Spring-AOP集成

package com.royee.ecport.pojo;

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

public class Shopcart extends PojoBase {
	private Map<Long,OrderLine> cart=new HashMap<Long,OrderLine>();
	private User user;
	private OrderStatus status;
	private double orderPrice=0;

	public Collection<OrderLine> getOrderLines(){
		return cart.values(); 
	}
	
	public void add(Product p){
		orderPrice+=p.getBasePrice();
		OrderLine ol=null;
		if(cart.containsKey(p.getPid()))
			ol=cart.get(p.getPid());
		else{
			ol=new OrderLine();
			ol.setProduct(p);
			ol.setAmount(0);
			cart.put(p.getPid(), ol);
		}
		ol.addAmount(1);
	}
	
	public void remove(long pid){
		if(cart.containsKey(pid)){
			OrderLine ol=cart.get(pid);
			Product p=ol.getProduct();
			orderPrice-=ol.getAmount()*p.getBasePrice();
			cart.remove(pid);
		}
	}
	
	public void edit(long pid,int num){
		if(cart.containsKey(pid)){
			OrderLine ol=cart.get(pid);
			Product p=ol.getProduct();
			orderPrice+=(num-ol.getAmount())*p.getBasePrice();
			ol.setAmount(num);
		}
	}
	
	public void clear(){
		cart.clear();
		orderPrice=0;
	}
	
	public Order toOrder(){
		Order order=new Order();
		order.setCost(orderPrice);
		order.setUser(user);
		order.addOrderLines(cart.values());
		order.setStatus(status);
		return order;
	}

	public User getUser() {
		return user;
	}

	public void setUser(User user) {
		this.user = user;
	}

	public double getOrderPrice() {
		return orderPrice;
	}

	public OrderStatus getStatus() {
		return status;
	}

	public void setStatus(OrderStatus status) {
		this.status = status;
	}


}