userinfodao.java

SSH整合的一个简单的增删改查

package com.hacker.web.dao;

import java.util.List;

import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.hacker.web.dao.impl.IUserinfoDao;
import com.hacker.web.emtity.Userinfo;

/**
 * Data access object (DAO) for domain model class Userinfo.
 * 
 * @see com.hacker.web.emtity.Userinfo
 * @author MyEclipse Persistence Tools
 */

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

	// property constants
	public static final String USER_NAME = "userName";

	public static final String PASS_WORD = "passWord";

	protected void initDao() {
		// do nothing
	}

	/* (non-Javadoc)
	 * @see com.hacker.web.dao.IUserinfoDao#save(com.hacker.web.emtity.Userinfo)
	 */
	public void save(Userinfo transientInstance) {
		log.debug("saving Userinfo instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.hacker.web.dao.IUserinfoDao#delete(com.hacker.web.emtity.Userinfo)
	 */
	public void delete(String id) {
		log.debug("deleting Userinfo instance");
		try {
			Userinfo info = (Userinfo)this.findById(Integer.parseInt(id));
			getHibernateTemplate().delete(info);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.hacker.web.dao.IUserinfoDao#findById(java.lang.Integer)
	 */
	public Userinfo findById(java.lang.Integer id) {
		log.debug("getting Userinfo instance with id: " + id);
		try {
			Userinfo instance = (Userinfo) getHibernateTemplate().get(
					"com.hacker.web.emtity.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 = getHibernateTemplate().findByExample(instance);
			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 + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	public List findByUserName(Object userName) {
		return findByProperty(USER_NAME, userName);
	}

	public List findByPassWord(Object passWord) {
		return findByProperty(PASS_WORD, passWord);
	}

	/* (non-Javadoc)
	 * @see com.hacker.web.dao.IUserinfoDao#findAll()
	 */
	public List findAll() {
		log.debug("finding all Userinfo instances");
		try {
			String queryString = "from Userinfo";
			return getHibernateTemplate().find(queryString);
		} 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) getHibernateTemplate().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 {
			getHibernateTemplate().update(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 {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static IUserinfoDao getFromApplicationContext(ApplicationContext ctx) {
		return (IUserinfoDao) ctx.getBean("UserinfoDAO");
	}
}