newsreviewdao.java

一个oa系统

package com.oa.companyculture.db;

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.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.oa.page.PageBean;  

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

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

	protected void initDao() {
		//do nothing
	}
    
    public void save(Newsreview transientInstance) {
        log.debug("saving Newsreview instance");
        try {
            getHibernateTemplate().save(transientInstance);
            log.debug("save successful");
        } catch (RuntimeException re) {
            log.error("save failed", re);
            throw re;
        }
    }
    
    public int getCountByNewsid(String newsid) {
        try {
        	int intc = 0;
            List results = getHibernateTemplate().find("select count(*) from Newsreview where newsid=?", newsid);
            intc = (Integer) (results.iterator().next());
            log.debug("find by example successful, result size: " + results.size());
            return intc;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    } 
    
    public int getTotalCountBynewsid(String newsid) {
        try {
        	int intc = 0;
            List results = getHibernateTemplate().find("select count(*) from Newsreview where newsid=?", newsid);
            intc = (Integer) (results.iterator().next());
            log.debug("find by example successful, result size: " + results.size());
            return intc;
        } catch (RuntimeException re) {
            log.error("find by example failed", re);
            throw re;
        }
    } 
    
    public List findNewsreview(String newsid, PageBean pager) {
        log.debug("finding Newsreview instance");
        try {
        	String sql = "from Newsreview where newsid=:newsid order by date desc";
        	Query query = getHibernateTemplate().getSessionFactory().openSession().createQuery(sql);
        	query.setString("newsid", newsid);
        	int currentPage = pager.getCurrentPage();
        	int pageSize = pager.getPageSize();
        	query.setFirstResult(((currentPage-1) * pageSize));
        	query.setMaxResults(pageSize);
            List results = query.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 void delete(Newsreview persistentInstance) {
        log.debug("deleting Newsreview instance");
        try {
            getHibernateTemplate().delete(persistentInstance);
            log.debug("delete successful");
        } catch (RuntimeException re) {
            log.error("delete failed", re);
            throw re;
        }
    }
    
    public Newsreview findById( java.lang.Integer id) {
        log.debug("getting Newsreview instance with id: " + id);
        try {
            Newsreview instance = (Newsreview) getHibernateTemplate()
                    .get("com.oa.companyculture.db.Newsreview", id);
            return instance;
        } catch (RuntimeException re) {
            log.error("get failed", re);
            throw re;
        }
    }
    
    
    public List findByExample(Newsreview instance) {
        log.debug("finding Newsreview 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 Newsreview instance with property: " + propertyName
            + ", value: " + value);
      try {
         String queryString = "from Newsreview as model where model." 
         						+ propertyName + "= ?";
		 return getHibernateTemplate().find(queryString, value);
      } catch (RuntimeException re) {
         log.error("find by property name failed", re);
         throw re;
      }
	}

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

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

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