taddressbookdao.java

swnglu数据库连接统struts和hinernate

package hibernatemodel;

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.Transaction;
import org.hibernate.criterion.Example;

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

public class TAddressbookDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(TAddressbookDAO.class);
	// property constants
	public static final String NAME = "name";
	public static final String PHONE = "phone";
	public static final String ADDRESS = "address";
	public static final String EMAIL = "email";
	public static final String PROVINCE = "province";
	public void save(TAddressbook transientInstance) {
		log.debug("saving TAddressbook instance");
		try {
			getSession().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}
//hibernate插入操作
	public void insert(TAddressbook transientInstance) {
		log.debug("saving TAddressbook instance");
		Transaction tx=getSession().beginTransaction();
		try {
			getSession().save(transientInstance);
			tx.commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			tx.rollback();
			log.error("save failed", re);
			throw re;
		}
	}

	//修改
	public void update(TAddressbook transientInstance) {
		log.debug("saving TAddressbook instance");
		Transaction tx=getSession().beginTransaction();
		try {
			getSession().merge(transientInstance);
			//getSession().save(transientInstance);
			tx.commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			tx.rollback();
			log.error("save failed", re);
			throw re;
		}
	}

//hibernate查询操作
	public List select(String strsql) {
		
		try {
			Query queryObject = getSession().createQuery(strsql);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}
	
//删除操作
	
	public void delete(TAddressbook persistentInstance) {
		log.debug("deleting TAddressbook instance");
		//hibernate查询操作
		Transaction tx=getSession().beginTransaction();
		//结束
		try {
			//hibernate查询操作
			getSession().delete(persistentInstance);
			
			tx.commit();
			//
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

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

	public List findByExample(TAddressbook instance) {
		log.debug("finding TAddressbook instance by example");
		try {
			List results = getSession().createCriteria(
					"hibernatemodel.TAddressbook")
					.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 TAddressbook instance with property: "
				+ propertyName + ", value: " + value);
		try {
			String queryString = "from TAddressbook 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 findByName(Object name) {
		return findByProperty(NAME, name);
	}

	public List findByPhone(Object phone) {
		return findByProperty(PHONE, phone);
	}

	public List findByAddress(Object address) {
		return findByProperty(ADDRESS, address);
	}
	public List findByEmail(Object email) {
		return findByProperty(EMAIL, email);
	}
	public List findAll() {
		log.debug("finding all TAddressbook instances");
		try {
			String queryString = "from TAddressbook";
			Query queryObject = getSession().createQuery(queryString);
			return queryObject.list();
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

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

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

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