gradetabledao.java

在线考试系统

package exam.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;

/**
 * A data access object (DAO) providing persistence and search support for
 * GradeTable 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 exam.dao.GradeTable
 * @author MyEclipse Persistence Tools
 */

public class GradeTableDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(GradeTableDAO.class);
	// property constants
	public static final String SELECTONEPOINT = "selectonepoint";
	public static final String SELECTMANYPOINT = "selectmanypoint";
	public static final String ONEASKPOINT = "oneaskpoint";
	public static final String MANYASKPOINT = "manyaskpoint";
	public static final String COMBINATIONPOINT = "combinationpoint";
	public static final String OTHERPOINT = "otherpoint";

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

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

	public GradeTable findById(exam.dao.GradeTableId id) {
		log.debug("getting GradeTable instance with id: " + id);
		try {
			GradeTable instance = (GradeTable) getSession().get(
					"exam.dao.GradeTable", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	public List findByExample(GradeTable instance) {
		log.debug("finding GradeTable instance by example");
		try {
			List results = getSession().createCriteria("exam.dao.GradeTable")
					.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 GradeTable instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from GradeTable 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 findBySelectonepoint(Object selectonepoint) {
		return findByProperty(SELECTONEPOINT, selectonepoint);
	}

	public List findBySelectmanypoint(Object selectmanypoint) {
		return findByProperty(SELECTMANYPOINT, selectmanypoint);
	}

	public List findByOneaskpoint(Object oneaskpoint) {
		return findByProperty(ONEASKPOINT, oneaskpoint);
	}

	public List findByManyaskpoint(Object manyaskpoint) {
		return findByProperty(MANYASKPOINT, manyaskpoint);
	}

	public List findByCombinationpoint(Object combinationpoint) {
		return findByProperty(COMBINATIONPOINT, combinationpoint);
	}

	public List findByOtherpoint(Object otherpoint) {
		return findByProperty(OTHERPOINT, otherpoint);
	}

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

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

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

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