package com.zhou.dao;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.criterion.Example;

import com.zhou.po.Userinfo;

/**
 * Data access object (DAO) for domain model class Userinfo.
 * 
 * @see com.zhou.po.Userinfo
 * @author MyEclipse Persistence Tools
 */

public class UserinfoDAO extends BaseHibernateDAO implements IUserinfoDAO {
	private static final Log log = LogFactory.getLog(UserinfoDAO.class);

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#save(com.zhou.po.Userinfo)
	 */
	public void save(Userinfo transientInstance) {
		log.debug("saving Userinfo instance");
		try {
			getSession().beginTransaction().begin();
			getSession().save(transientInstance);
			getSession().beginTransaction().commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#delete(com.zhou.po.Userinfo)
	 */
	public void delete(Userinfo persistentInstance) {
		log.debug("deleting Userinfo instance");
		try {
			getSession().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#findById(java.lang.Long)
	 */
	public Userinfo findById(java.lang.Long id) {
		log.debug("getting Userinfo instance with id: " + id);
		try {
			Userinfo instance = (Userinfo) getSession().get(
					"com.zhou.po.Userinfo", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#findByExample(com.zhou.po.Userinfo)
	 */
	public List findByExample(Userinfo instance) {
		log.debug("finding Userinfo instance by example");
		try {
			List results = getSession().createCriteria("com.zhou.po.Userinfo")
					.add(Example.create(instance)).list();
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#findByProperty(java.lang.String, java.lang.Object)
	 */
	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Userinfo instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Userinfo as model where model."
					+ propertyName + "= ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}
	
	public List login(Object username,Object userpwd) {
 
		try {
			String queryString = "from Userinfo as model where model.username= ? and model.userpwd = ?";
			Query queryObject = getSession().createQuery(queryString);
			queryObject.setParameter(0, username);
			queryObject.setParameter(1, userpwd);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}
	
	public List findByAll() {
		try {
			String queryString = "from Userinfo as model";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#findByUsername(java.lang.Object)
	 */
	public List findByUsername(Object username) {
		return findByProperty(USERNAME, username);
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#findByUserpwd(java.lang.Object)
	 */
	public List findByUserpwd(Object userpwd) {
		return findByProperty(USERPWD, userpwd);
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#merge(com.zhou.po.Userinfo)
	 */
	public Userinfo merge(Userinfo detachedInstance) {
		log.debug("merging Userinfo instance");
		try {
			Userinfo result = (Userinfo) getSession().merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#attachDirty(com.zhou.po.Userinfo)
	 */
	public void attachDirty(Userinfo instance) {
		log.debug("attaching dirty Userinfo instance");
		try {
			getSession().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.zhou.dao.IUserinfoDAO#attachClean(com.zhou.po.Userinfo)
	 */
	public void attachClean(Userinfo instance) {
		log.debug("attaching clean Userinfo instance");
		try {
			getSession().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}
}