usergroupdao.java

来自「spring+hibernate+struts开发的校务oa系统」· Java 代码 · 共 178 行

package com.yondor.oa.db.usergroup.dao;

import java.util.List;
import java.util.Set;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.Criteria;
import org.hibernate.LockMode;
import org.hibernate.criterion.DetachedCriteria;
import org.hibernate.criterion.Expression;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.SessionFactoryUtils;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.yondor.oa.db.usergroup.iface.IUsergroup;

/**
 * Data access object (DAO) for domain model class Usergroup.
 * @see com.yondor.oa.db.pojo.Usergroup
 * @author MyEclipse - Hibernate Tools
 */
public class UsergroupDAO extends HibernateDaoSupport implements IUsergroup {

	private static final Log log = LogFactory.getLog(UsergroupDAO.class);

	protected void initDao() {
		//do nothing
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#save(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public void save(Usergroup transientInstance) {
		log.debug("saving Usergroup instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}
	}


	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#delete(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public void delete(Usergroup persistentInstance) {
		log.debug("deleting Usergroup instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	public List findByHql(StringBuffer hql){
		return getHibernateTemplate().find(hql.toString());
	}

	public List findSegment(int firstResult,int maxResults){
		return getHibernateTemplate()
		.findByCriteria(DetachedCriteria.forClass(Usergroup.class), 
				firstResult,
				maxResults);
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#findById(java.lang.Long)
	 */
	public Usergroup findById( java.lang.Long id) {
		log.debug("getting Usergroup instance with id: " + id);
		try {
			Usergroup instance = (Usergroup) getHibernateTemplate()
			.get("com.yondor.oa.db.usergroup.dao.Usergroup", id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}


	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#findByExample(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public List findByExample(Usergroup instance) {
		log.debug("finding Usergroup 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;
		}
	}    

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#findByProperty(java.lang.String, java.lang.Object)
	 */
	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Usergroup instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Usergroup as model where model." 
				+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#findByGroupname(java.lang.Object)
	 */
	public List findByGroupname(Object groupname) {
		return findByProperty(GROUPNAME, groupname);
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#findByDescription(java.lang.Object)
	 */
	public List findByDescription(Object description) {
		return findByProperty(DESCRIPTION, description);
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#merge(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public Usergroup merge(Usergroup detachedInstance) {
		log.debug("merging Usergroup instance");
		try {
			Usergroup result = (Usergroup) getHibernateTemplate()
			.merge(detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#attachDirty(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public void attachDirty(Usergroup instance) {
		log.debug("attaching dirty Usergroup instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	/* (non-Javadoc)
	 * @see com.yondor.oa.db.usergroup.dao.IUsergroup#attachClean(com.yondor.oa.db.usergroup.dao.Usergroup)
	 */
	public void attachClean(Usergroup instance) {
		log.debug("attaching clean Usergroup instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static IUsergroup getFromApplicationContext(ApplicationContext ctx) {
		return (IUsergroup) ctx.getBean("UsergroupDAO");
	}
}