userinfodao.java

本光盘包含了本书各章中出现的所有程序的源代码。 1. 如果是Java程序

package bean;

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 Userinfo.
 * 
 * @see bean.Userinfo
 * @author MyEclipse Persistence Tools
 */

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

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

	public static final String PASSWORD = "password";

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

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

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

	public List findByExample(Userinfo instance) {
		log.debug("finding Userinfo instance by example");
		try {
			List results = getSession().createCriteria("bean.Userinfo").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 Userinfo instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Userinfo 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 findByPassword(Object password) {
		return findByProperty(PASSWORD, password);
	}

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

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

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

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