foodinfobo.java

java网上订餐系统java网上订餐系统java网上订餐系统

package com.bo;
import java.util.ArrayList;

import com.dao.FoodInfoDao;
import com.vo.FoodInfo;

public class FoodInfoBo {

	private FoodInfoDao food = new FoodInfoDao();
	private static FoodInfoBo foodInfo = null;
	private FoodInfoBo(){}
	//单例,只能用FoodInfoBo.createFoodInfoBo()去调本类中的方法
	public static FoodInfoBo createFoodInfoBo(){
		if(foodInfo==null){
			foodInfo = new FoodInfoBo();
		}
		return foodInfo;
	}
	//查询食物信息
	public ArrayList selectFoodInfo(){		
		return (ArrayList) food.selectInfo();
	}
	//根据ID查询食物信息
	public ArrayList selectFoodInfo(FoodInfo info){		
		return (ArrayList) food.selectInfo(info);
	}
}