servicesdao.java

达内培训时做的亚信的实战项目 包含数据库 struts+hibernate

package com.tarena.oos.DAO;
// default package

import com.tarena.oos.model.Services;

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 Services.
 * @see .Services
  * @author MyEclipse Persistence Tools 
 */

public class ServicesDAO extends BaseDAO  {
    private static final Log log = LogFactory.getLog(ServicesDAO.class);
	//property constants
	public static final String LAB_LOGIN_NAME = "labLoginName";
	public static final String LAB_LOGIN_PASSWORD = "labLoginPassword";
	public static final String LAB_IP = "labIp";
	public static final String USER_STATUS = "userStatus";


    
    public void save(Services transientInstance) {
        log.debug("saving Services instance");
        try {
            getSession().saveOrUpdate(transientInstance);
            getSession().beginTransaction().commit();
            getSession().flush();
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	public void delete(Services persistentInstance) {
        log.debug("deleting Services instance");
        try {
            getSession().delete(persistentInstance);
            getSession().beginTransaction().commit();
            getSession().flush();
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    public Services findById( java.lang.Integer id) {
        log.debug("getting Services instance with id: " + id);
        try {
            Services instance = (Services) getSession()
                    .get(Services.class, id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(Services instance) {
        log.debug("finding Services instance by example");
        try {
            List results = getSession()
                    .createCriteria("Services")
                    .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 Services instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Services 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 findByLabLoginName(Object labLoginName) {
		return findByProperty(LAB_LOGIN_NAME, labLoginName);
	}
	
	public List findByLabLoginPassword(Object labLoginPassword) {
		return findByProperty(LAB_LOGIN_PASSWORD, labLoginPassword);
	}
	
	public List findByLabIp(Object labIp) {
		return findByProperty(LAB_IP, labIp);
	}
	
	public List findByUserStatus(Object userStatus) {
		return findByProperty(USER_STATUS, userStatus);
	}
	

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

    public void attachDirty(Services instance) {
        log.debug("attaching dirty Services instance");
        try {
            getSession().saveOrUpdate(instance);
            getSession().beginTransaction().commit();
            getSession().flush();
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
    
    public void attachClean(Services instance) {
        log.debug("attaching clean Services instance");
        try {
            getSession().lock(instance, LockMode.NONE);
            log.debug("attach successful");
        } catch (RuntimeException re) {
            log.error("attach failed", re);
            throw re;
        }
    }
}