package com.lixineng.dao;

import java.util.Date;
import java.util.List;
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 Bid
 * 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.Bid
 * @author MyEclipse Persistence Tools
 */

public class BidDAO extends HibernateDaoSupport {
	private static final Log log = LogFactory.getLog(BidDAO.class);
	// property constants
	public static final String BID_PRICE = "bidPrice";

	protected void initDao() {
		// do nothing
	}

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

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

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

	public List findByExample(Bid instance) {
		log.debug("finding Bid 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 Bid instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Bid 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 findByBidPrice(Object bidPrice) {
		return findByProperty(BID_PRICE, bidPrice);
	}

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

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

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

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

	public static BidDAO getFromApplicationContext(ApplicationContext ctx) {
		return (BidDAO) ctx.getBean("BidDAO");
	}
	
	  /**
     * 根據(jù)用戶查找競(jìng)價(jià)
     * @param id 用戶id
     * @return 用戶對(duì)應(yīng)的全部競(jìng)價(jià)
     */
    public List findByUser(Integer userId)
    {
        return getHibernateTemplate().find("from Bid as bid where bid.auctionUser.id = ?",userId);
    }
    /**
	 * 根據(jù)物品id，以及出價(jià)查詢用戶
	 * @param itemId 物品id;
	 * @param price 競(jìng)價(jià)的價(jià)格
	 * @return 對(duì)指定物品出指定競(jìng)價(jià)的用戶
	 */
    public AuctionUser findUserByItemAndPrice(Integer itemId , Double price)
	{
		Object[] args = {itemId , price} ;
        List l = getHibernateTemplate().find("from Bid as bid where bid.item.id = ? and bid.bidPrice = ?",args);
		if (l.size() >= 1)
		{
			Bid b = (Bid)l.get(0);
			return b.getAuctionUser();
		}
		else
		{
			return null;
		}

	}
	
	
	
	
	
	
	
	
	
	
	
}