articledao.java

openblog是一个博客管理系统

package org.openblog.hibernate;

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


import org.hibernate.Transaction;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;
import org.hibernate.criterion.Example;

/**
 * A data access object (DAO) providing persistence and search support for
 * Article entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see org.openblog.hibernate.Article
 * @author MyEclipse Persistence Tools
 */

public class ArticleDAO extends BaseHibernateDAO {
	private static final Log log = LogFactory.getLog(ArticleDAO.class);
	// property constants
	public static final String ARTICLE_TITLE = "articleTitle";
	public static final String ARTICLE_CONTENT = "articleContent";
	public static final String ARTICLE_DATE = "articleDate";
	public static final String ARTICLE_COUNT = "articleCount";

	public void save(Article transientInstance) {
		Transaction trans = null;
		log.debug("saving Article instance");
		try {
			trans = getSession().beginTransaction();
			getSession().save(transientInstance);
			getSession().flush();
			trans.commit();
			log.debug("save successful");
		} catch (RuntimeException re) {
			if(trans!=null) trans.rollback();
			log.error("save failed", re);
			throw re;
		}
	}

	public void delete(Article persistentInstance) {
		Transaction trans = null;
		log.debug("deleting Article instance");
		try {
			trans = getSession().beginTransaction();
			getSession().delete(persistentInstance);
			getSession().flush();
			trans.commit();
			log.debug("delete successful");
		} catch (RuntimeException re) {
			if(trans!=null) trans.rollback();
			log.error("delete failed", re);
			throw re;
		}
	}

	public void ModifyArticle(Article article)
	{
		Session session = HibernateSessionFactory.getSession();
		org.hibernate.Transaction ts = null;
		try
		{
			ts= session.beginTransaction();
			session.update(article);
			ts.commit();
		}
		catch(Exception ex)
		{
			if(ts!=null) ts.rollback();
			System.out.println("