booksmallclassdao.java

在eclipse平台下写的

package com.internetshop.hibernate.book_small_class;

import com.internetshop.hibernate.member_message.BaseHibernateDAO;
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;

/**
 * Data access object (DAO) for domain model class BookSmallClass.
 * 
 * @see com.internetshop.hibernate.book_small_class.BookSmallClass
 * @author MyEclipse Persistence Tools
 */

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

	// property constants
	public static final String _ME_CLASS_NAME = "ME_className";

	public static final String _ME_ORDER = "ME_order";

	public static final String _ME_BELONG_BIG_CLASS = "ME_belongBigClass";

	public static final String _ME_USUALLY = "ME_usually";

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

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

	public BookSmallClass findById(java.lang.Long id) {
		log.debug("getting BookSmallClass instance with id: " + id);
		try {
			BookSmallClass instance = (BookSmallClass) getSession()
					.get(
							"com.internetshop.hibernate.book_small_class.BookSmallClass",
							id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(BookSmallClass instance) {
		log.debug("finding BookSmallClass instance by example");
		try {
			List results = getSession()
					.createCriteria(
							"com.internetshop.hibernate.book_small_class.BookSmallClass")
					.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 BookSmallClass instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from BookSmallClass 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 findByME_className(Object ME_className) {
		return findByProperty(_ME_CLASS_NAME, ME_className);
	}

	public List findByME_order(Object ME_order) {
		return findByProperty(_ME_ORDER, ME_order);
	}

	public List findByME_belongBigClass(Object ME_belongBigClass) {
		return findByProperty(_ME_BELONG_BIG_CLASS, ME_belongBigClass);
	}

	public List findByME_usually(Object ME_usually) {
		return findByProperty(_ME_USUALLY, ME_usually);
	}

	public List findAll() {
		log.debug("finding all BookSmallClass instances");
		try {
			String queryString = "from BookSmallClass";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

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

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

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