newsdaohibernate.java

新闻发布系统news struts+spring+hibernate

package org.yeeku.dao.hibernate;

import org.springframework.orm.ObjectRetrievalFailureException;
import org.yeeku.dao.NewsDAO;
import org.yeeku.model.News;

public class NewsDAOHibernate extends BaseDAOHibernate implements NewsDAO {

    public News getNews(Long id) {
        News news = (News) getHibernateTemplate().get(News.class, id);

        if (news == null) {
            throw new ObjectRetrievalFailureException(News.class, id);   
        }

        return news;
    }

    public void saveNews(News news) {
        getHibernateTemplate().saveOrUpdate(news);
    }

    public void removeNews(Long id) {
        // object must be loaded before it can be deleted
        getHibernateTemplate().delete(getNews(id));
    }
}