subscribedao.java

网上购物系统

package tarena.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 tarena.entity.Subscribe;

/**
 * Data access object (DAO) for domain model class Subscribe.
 * 
 * @see tarena.entity.Subscribe
 * @author MyEclipse Persistence Tools
 */

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

	// property constants

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

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

	public Subscribe findById(java.lang.Integer id) {
		log.debug("getting Subscribe instance with id: " + id);
		try {
			Subscribe instance = (Subscribe) getSession().get(
					"tarena.entity.Subscribe", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(Subscribe instance) {
		log.debug("finding Subscribe instance by example");
		try {
			List results = getSession().createCriteria(
					"tarena.entity.Subscribe").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;
		}
	}

	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Subscribe instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Subscribe 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 findAll() {
		log.debug("finding all Subscribe instances");
		try {
			String queryString = "from Subscribe";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

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

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

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