topicdao.java

spring+hibernate+struts开发的校务oa系统

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

import java.util.Date;
import java.util.List;
import java.util.Set;
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;

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

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

	//property constants
	public static final String TOP = "top";
	public static final String CONTENTTAG = "contenttag";
	public static final String DISTILLATE = "distillate";
	public static final String TITLE = "title";
	public static final String FACE = "face";
	public static final String TEMP = "temp";

	protected void initDao() {
		//do nothing
	}
    
    public void save(Topic transientInstance) {
        log.debug("saving Topic instance");
        try {
            getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
	public void delete(Topic persistentInstance) {
        log.debug("deleting Topic instance");
        try {
            getHibernateTemplate().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    public Topic findById( java.lang.Long id) {
        log.debug("getting Topic instance with id: " + id);
        try {
            Topic instance = (Topic) getHibernateTemplate()
                    .get(Topic.class, id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(Topic instance) {
        log.debug("finding Topic 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 Topic instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Topic 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 findByTop(Object top) {
		return findByProperty(TOP, top);
	}
	
	public List findByContenttag(Object contenttag) {
		return findByProperty(CONTENTTAG, contenttag);
	}
	
	public List findByDistillate(Object distillate) {
		return findByProperty(DISTILLATE, distillate);
	}
	
	public List findByTitle(Object title) {
		return findByProperty(TITLE, title);
	}
	
	public List findByFace(Object face) {
		return findByProperty(FACE, face);
	}
	
	public List findByTemp(Object temp) {
		return findByProperty(TEMP, temp);
	}
	
    public Topic merge(Topic detachedInstance) {
        log.debug("merging Topic instance");
        try {
            Topic result = (Topic) getHibernateTemplate()
                    .merge(detachedInstance);
            log.debug("merge successful");
            return result;
        } catch (RuntimeException re) {
            log.error("merge failed", re);
            throw re;
        }
    }

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

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