package com.demo.dao;

import java.util.List;

import javax.annotation.Resource;

import org.hibernate.SessionFactory;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;

import com.demo.domain.User;
@Component
@Transactional
public class UserDao {

	private SessionFactory sessionFactory ;

	public SessionFactory getSessionFactory() {
		return sessionFactory;
	}
	@Resource(name="sessionFactory")
	public void setSessionFactory(SessionFactory sessionFactory) {
		this.sessionFactory = sessionFactory;
	}
	
	/**
	 * 保存User
	 * @param u
	 */
	
	public void save(User u){
		sessionFactory.getCurrentSession().save(u);
	}
	
	public List<User> getAll(){
		List<User> list = sessionFactory.getCurrentSession().createCriteria(User.class).list();
		return list;
	}
	/**
	 * 删除一个用户
	 * @param id
	 */
	public void deleteUser(int id) {
		
		
	}
	/**
	 * 根据ID 得到一个user
	 * @param id
	 * @return
	 */
	
	public User queryUser(int id) {
		
		return null;
	}
	/**
	 * 更新一个用户
	 * @param u
	 */
	public void updateUser(User u) {
		
		
	}
}