hibernatebase.java

java实现的可配置的工作流引擎,采用jsp+javabean实现

/*
 * Created on 2004-10-12 TODO To change the template for this generated file go to Window - Preferences - Java - Code
 * Style - Code Templates
 */
package com.hongsoft.agile.hibernate;

import org.hibernate.HibernateException;
import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;
import org.apache.log4j.xml.DOMConfigurator;

import com.hongsoft.agile.*;

import java.io.*;

public class HibernateBase {
    private static SessionFactory sessionFactory; // 会话工厂

    protected final static String CONFIG_FILE = Global.getConfPath() + "hibernate.cfg.xml";

    protected final static String PROCESS_DEFINE = Global.getConfPath() + "agile.hbm.xml";

    protected final static String BUSINESS_DEFINE = Global.getConfPath() + "business.hbm.xml";

    protected final static String RES_DEFILE = Global.getConfPath() + "res.hbm.xml";

    public static final ThreadLocal session = new ThreadLocal();

    static {// init
        synchronized (CONFIG_FILE) {
            if (sessionFactory == null) {
                DOMConfigurator.configure(Global.getConfPath() + "log4j.xml");
                try {
                    Configuration conf = new Configuration().addFile(PROCESS_DEFINE).addFile(BUSINESS_DEFINE).addFile(
                            RES_DEFILE);
                    conf.configure(new File(CONFIG_FILE));
                    sessionFactory = conf.buildSessionFactory();
                } catch (HibernateException e) {
                    e.printStackTrace();
                }
            }
        }
    }

    public static Session getSession() throws HibernateException {
        Session s = (Session) session.get();
        if (s == null) {
            s = sessionFactory.openSession();
            session.set(s);
        }
        return s;
    }

    public static void closeSession() throws HibernateException {
        Session s = (Session) session.get();
        session.set(null);
        if (s != null)
            s.close();
    }
}