userdao.java

本系统是新华社内部信息管理系统

package com.nitpro.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 com.nitpro.vo.User;

/**
 * Data access object (DAO) for domain model class User.
 * 
 * @see com.nitpro.vo.User
 * @author 邓锦溏
 * @version 1.0
 */

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

	// property constants
	public static final String USERNAME = "username";

	public static final String REALNAME = "realname";

	public static final String USERPWD = "userpwd";

	public static final String USERSEX = "usersex";

	public static final String USERAGE = "userage";

	public static final String USEREMAIL = "useremail";

	public void save(User transientInstance) {
		log.debug("saving User instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
			getSession().beginTransaction().commit();
		} 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");
			getSession().beginTransaction().commit();
		} 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("com.nitpro.vo.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("com.nitpro.vo.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 findByUsername(Object username) {
		return findByProperty(USERNAME, username);
	}

	public List findByRealname(Object realname) {
		return findByProperty(REALNAME, realname);
	}

	public List findByUserpwd(Object userpwd) {
		return findByProperty(USERPWD, userpwd);
	}

	public List findByUsersex(Object usersex) {
		return findByProperty(USERSEX, usersex);
	}

	public List findByUserage(Object userage) {
		return findByProperty(USERAGE, userage);
	}

	public List findByUseremail(Object useremail) {
		return findByProperty(USEREMAIL, useremail);
	}

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

	public User merge(User detachedInstance) {
		log.debug("merging User instance");
		try {
			User result = (User) getSession().merge(detachedInstance);
			log.debug("merge successful");
			getSession().beginTransaction().commit();
			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;
		}
	}
}