四季如風

package org.jock.hibernate.model;

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.hibernate.Query;
import org.hibernate.criterion.Example;

/**
* Data access object (DAO) for domain model class User.
* @see org.jock.hibernate.model.User
* @author MyEclipse – Hibernate Tools
*/
public class UserDAO extends BaseHibernateDAO {

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

 //property constants
 public static final String FNAME = “fname”;
 public static final String LNAME = “lname”;
 public static final String USERNAME = “username”;
 public static final String PASSWORD = “password”;
 public static final String AUTH = “auth”;
 public static final String GRADEID = “gradeid”;
 public static final String EMAIL = “email”;
 public static final String FLAG = “flag”;
 public static final String TEL = “tel”;

 
  public void save(User transientInstance) {
      log.debug(“saving User instance”);
      try {
          getSession().save(transientInstance);
          log.debug(“save successful”);
      } catch (RuntimeException re) {
          log.error(“save failed”, re);
          throw re;
      }
  }
 
 public void delete(User persistentInstance) {
      log.debug(“deleting User instance”);
      try {
          getSession().delete(persistentInstance);
          log.debug(“delete successful”);
      } catch (RuntimeException re) {
          log.error(“delete failed”, re);
          throw re;
      }
  }
 
  public User findById( java.lang.Integer id) {
      log.debug(“getting User instance with id: ” + id);
      try {
          User instance = (User) getSession()
                  .get(“org.jock.hibernate.model.User”, id);
          return instance;
      } catch (RuntimeException re) {
          log.error(“get failed”, re);
          throw re;
      }
  }
 
 
  public List findByExample(User instance) {
      log.debug(“finding User instance by example”);
      try {
          List results = getSession()
                  .createCriteria(“org.jock.hibernate.model.User”)
                  .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 User instance with property: ” + propertyName
          + “, value: ” + value);
    try {
       String queryString = “from User 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 findByFname(Object fname) {
   return findByProperty(FNAME, fname);
 }
 
 public List findByLname(Object lname) {
   return findByProperty(LNAME, lname);
 }
 
 public List findByUsername(Object username) {
   return findByProperty(USERNAME, username);
 }
 
 public List findByPassword(Object password) {
   return findByProperty(PASSWORD, password);
 }
 
 public List findByAuth(Object auth) {
   return findByProperty(AUTH, auth);
 }
 
 public List findByGradeid(Object gradeid) {
   return findByProperty(GRADEID, gradeid);
 }
 
 public List findByEmail(Object email) {
   return findByProperty(EMAIL, email);
 }
 
 public List findByFlag(Object flag) {
   return findByProperty(FLAG, flag);
 }
 
 public List findByTel(Object tel) {
   return findByProperty(TEL, tel);
 }
 
  public User merge(User detachedInstance) {
      log.debug(“merging User instance”);
      try {
          User result = (User) getSession()
                  .merge(detachedInstance);
          log.debug(“merge successful”);
          return result;
      } catch (RuntimeException re) {
          log.error(“merge failed”, re);
          throw re;
      }
  }

  public void attachDirty(User instance) {
      log.debug(“attaching dirty User instance”);
      try {
          getSession().saveOrUpdate(instance);
          log.debug(“attach successful”);
      } catch (RuntimeException re) {
          log.error(“attach failed”, re);
          throw re;
      }
  }
 
  public void attachClean(User instance) {
      log.debug(“attaching clean User instance”);
      try {
          getSession().lock(instance, LockMode.NONE);
          log.debug(“attach successful”);
      } catch (RuntimeException re) {
          log.error(“attach failed”, re);
          throw re;
      }
  }
}

作者：Jock