package com.lixineng.dao;

import java.util.List;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;



/**
 * A data access object (DAO) providing persistence and search support for
 * AuctionUser entities. Transaction control of the save(), update() and
 * delete() operations can directly support Spring container-managed
 * transactions or they can be augmented to handle user-managed Spring
 * transactions. Each of these methods provides additional information for how
 * to configure it for the desired type of transaction control.
 * 
 * @see com.lixineng.dao.AuctionUser
 * @author MyEclipse Persistence Tools
 */

public class AuctionUserDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(AuctionUserDAO.class);
	// property constants
	public static final String USERNAME = "username";
	public static final String USERPASS = "userpass";
	public static final String EMAIL = "email";

	protected void initDao() {
		// do nothing
	}

	public void save(AuctionUser transientInstance) {
		log.debug("saving AuctionUser instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(AuctionUser persistentInstance) {
		log.debug("deleting AuctionUser instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public AuctionUser findById(java.lang.Integer id) {
		log.debug("getting AuctionUser instance with id: " + id);
		try {
			AuctionUser instance = (AuctionUser) getHibernateTemplate().get(
					"com.lixineng.dao.AuctionUser", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(AuctionUser instance) {
		log.debug("finding AuctionUser instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding AuctionUser instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from AuctionUser as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByUsername(Object username) {
		return findByProperty(USERNAME, username);
	}

	public List findByUserpass(Object userpass) {
		return findByProperty(USERPASS, userpass);
	}

	public List findByEmail(Object email) {
		return findByProperty(EMAIL, email);
	}

	public List findAll() {
		log.debug("finding all AuctionUser instances");
		try {
			String queryString = "from AuctionUser";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	public AuctionUser merge(AuctionUser detachedInstance) {
		log.debug("merging AuctionUser instance");
		try {
			AuctionUser result = (AuctionUser) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	public void attachDirty(AuctionUser instance) {
		log.debug("attaching dirty AuctionUser instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public void attachClean(AuctionUser instance) {
		log.debug("attaching clean AuctionUser instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static AuctionUserDAO getFromApplicationContext(
			ApplicationContext ctx) {
		return (AuctionUserDAO) ctx.getBean("AuctionUserDAO");
	}
	
	public AuctionUser findUserByNameAndPass(String username , String password)
    {
        String[] args = {username , password};
        List ul = getHibernateTemplate().find("from AuctionUser u where u.username = ? and u.userpass = ?" , args);
        if (ul!=null&&ul.size() == 1)
        {
            return (AuctionUser)ul.get(0);
        }
        return null;
    }
	
	
	
	
}