userbiz.java

shoppingCar 购物车

package com.tarena.shoppingcar.biz;

import java.util.List;

import com.tarena.shoppingcar.dao.UserDao;
import com.tarena.shoppingcar.entity.User;
import com.tarena.shoppingcar.factory.UserFactory;

public class UserBiz {
	private UserDao dao = UserFactory.getDao();
	public User find(String userName,String password) {
		return dao.find(userName, password);
	}
	public void modify(User user) {
		dao.modify(user);
	}
	public void add(User user) {
		dao.save(user);
	}
	public List<User> findByPage(int StartRow, int rowPerPage) {
		return dao.findByPage(StartRow, rowPerPage);
	}
	public int getRowCount(){
		return dao.findNum();
	}
	public List<User> getUsers(){
		return dao.findAll();
	}
	public List<User> findByName(String userName) {
		return dao.findByName(userName);
	}
	public boolean nameIsExist(String userName) {
		List<User> users = dao.findByName(userName);
		if(users.size() == 0) {
			return false;
		}else {
			return true;
		}
	}
}