deletebyselectbo.java

《基于Eclipse的开源框架技术与实战》[第8章]随书源码

package com.free.hibernate.delete;

import org.hibernate.*;
import org.hibernate.cfg.*;

import com.free.hibernate.bo.Contact;
import com.free.hibernate.util.HibernateUtil;

import java.util.*;

/**
 * <p>Title: Eclipse Plugin Development</p>
 * <p>Description: Free download</p>
 * <p>Copyright: Copyright (c) 2006</p>
 * <p>Company: Free</p>
 * @author gan.shu.man
 * @version 1.0
 */

public class DeleteBySelectBO {
	public static void main(String[] args) {
	
		HibernateUtil.buildSessionFactory();
		Session session = HibernateUtil.currentSession();
		String SQL_QUERY = "from Contact";
		Query query = session.createQuery(SQL_QUERY);
		
		for (Iterator it = query.iterate(); it.hasNext();) {
			Contact contact = (Contact) it.next();
			//删除firstName为wang的所有记录
			if (contact.getFirstName().equals("wang")){
				session.delete(contact);
			}
		}
	 	
		session.flush();
        session.close();
	}
}