src/com/pure/domain/CartItem.java

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package com.pure.domain;

import java.io.Serializable;

/**
 * 购物车条目 放置商品信息\数量\取回总价\同一商品的数量增加
 * 
 * @author fighting
 * 
 */
public class CartItem implements Serializable {
	private static final long serialVersionUID = 378806527228493095L;

	private Dish dish;

	private int quantity;

	public Dish getDish() {
		return dish;
	}

	public void setDish(Dish dish) {
		this.dish = dish;
	}

	public int getQuantity() {
		return quantity;
	}

	public void setQuantity(int quantity) {
		this.quantity = quantity;
	}

	public double getTotalPrice() {
		if (dish != null) {
			return dish.getPrice()*quantity;
		} else {
			return 0;
		}
	}

	public void incrementQuantity() {
		quantity++;
	}
}