orderitemtabledao.java

一个ssh的网上购物系统

package com.xfaccp.bookonline.hib.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.Session;
import org.hibernate.criterion.Example;

import com.xfaccp.bookonline.hib.dao.base.BaseHibernateDAO;
import com.xfaccp.bookonline.hib.dto.OrderitemTable;

/**
 * Data access object (DAO) for domain model class OrderitemTable.
 * 
 * @see com.xfaccp.bookonline.hib.dto.OrderitemTable
 * @author MyEclipse - Hibernate Tools
 */
public class OrderitemTableDAO extends BaseHibernateDAO {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private static final Log log = LogFactory.getLog(OrderitemTableDAO.class);

	// property constants
	public static final String QUANTITY = "quantity";

	public OrderitemTable findById(java.lang.Integer id) {
		log.debug("getting OrderitemTable instance with id: " + id);
		Session session = this.getSession();
		try {
			OrderitemTable instance = (OrderitemTable) session.get(
					"com.xfaccp.bookonline.hib.dto.OrderitemTable", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		} finally {
			session.close();
		}
	}

	public List findByExample(OrderitemTable instance) {
		log.debug("finding OrderitemTable instance by example");
		Session session = this.getSession();
		try {
			List results = session.createCriteria(
					"com.xfaccp.bookonline.hib.dto.OrderitemTable").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;
		} finally {
			session.close();
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding OrderitemTable instance with property: "
				+ propertyName + ", value: " + value);
		Session session = this.getSession();
		try {
			String queryString = "from OrderitemTable as model where model."
					+ propertyName + "= ?";
			Query queryObject = session.createQuery(queryString);
			queryObject.setParameter(0, value);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		} finally {
			session.close();
		}
	}

	public List findByQuantity(Object quantity) {
		return findByProperty(QUANTITY, quantity);
	}

	public OrderitemTable merge(OrderitemTable detachedInstance) {
		log.debug("merging OrderitemTable instance");
		Session session = this.getSession();
		try {
			OrderitemTable result = (OrderitemTable) session
					.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		} finally {
			session.close();
		}
	}

	public void attachDirty(OrderitemTable instance) {
		log.debug("attaching dirty OrderitemTable instance");
		Session session = this.getSession();
		try {
			session.saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		} finally {
			session.close();
		}
	}

	public void attachClean(OrderitemTable instance) {
		log.debug("attaching clean OrderitemTable instance");
		Session session = this.getSession();
		try {
			session.lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		} finally {
			session.close();
		}
	}
}