Java SessionFactory类代码示例

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
/**
 * Specify the underlying <tt>SessionFactory</tt>, by passing a JNDI name.
 * The <tt>accessMode</tt> is ignored by Hibernate.
 * @see org.odmg.Database#open(String, int)
 */
public void open(String name, int accessMode) throws ODMGException {
	try {
		new Configuration().configure();
	}
	catch (HibernateException he) {
		throw new ODMGException( he.getMessage() );
	}
	sessionFactory = (SessionFactory) SessionFactoryObjectFactory.getNamedInstance(name);
	if (sessionFactory==null) throw new ODMGException("No SessionFactory was associated with the given JDNI name");
	/*try {
		sessionFactory = (SessionFactory) NamingHelper.getInitialContext( Environment.getProperties() ).lookup(name);
	}
	catch (NamingException ne) {
		throw new ODMGException( ne.getMessage() );
	}*/
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
@Ignore
@Test
public void hibernateInit() throws Exception
{
    Database.init();

    Configuration config = new Configuration();
    config.configure("hibernate.cfg.xml");
    SessionFactory sessionFactory = config.buildSessionFactory();
    Session session = sessionFactory.openSession();
    Transaction transaction = session.beginTransaction();

    // Filter-time code (H3SessionAjaxFilter)
    transaction.commit();

    // Shutdown code, when do we need to do this?
    sessionFactory.close();
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
private static SessionFactory initSessionFactory(String fileName){
	SessionFactory sf = null;
	try{
		/**
		 * We will use this commented out the style for creating sessionfactory
		 */
		//URL url =  ClassLoader.getSystemResource(fileName);
		//String file_name = url.getFile();
	    //File f = new File(file_name);
     //File f = new File("config/myfile.cfg.xml");
	 
	 //sf = new Configuration().configure(f).buildSessionFactory();
		sf = new Configuration().configure().buildSessionFactory();
		 if(sf!=null){
		 	System.out.println("Message from ApplicationSessionFactory: Got Session !");
		 }else{
		 	System.out.println("Message from ApplicationSessionFactory: could not get Session !");
		 }
	}catch(Exception ex){
		ex.printStackTrace();
	}
	return sf;
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
private static SessionFactory initSessionFactory(String fileName){
	SessionFactory sf = null;
	try{
		/**
		 * We will use this commented out the style for creating sessionfactory
		 */
	 File f = new File(fileName);
     //File f = new File("config/myfile.cfg.xml");
	 
	 sf = new Configuration().configure(f).buildSessionFactory();
		//sf = new Configuration().configure().buildSessionFactory();
		 
	}catch(Exception ex){
		ex.printStackTrace();
	}
	return sf;
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
private static SessionFactory initSessionFactory(String fileName){
	SessionFactory sf = null;
	try{
		/**
		 * We will use this commented out the style for creating sessionfactory
		 */
		
	 File f = new File(fileName);
     //File f = new File("config/myfile.cfg.xml");
	 
	 sf = new Configuration().configure(f).buildSessionFactory();
		//sf = new Configuration().configure().buildSessionFactory();
		 
	}catch(Exception ex){
		ex.printStackTrace();
	}
	return sf;
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
/**
 * Instantiate a new <tt>SessionFactory</tt>, using the properties and
 * mappings in this configuration. The <tt>SessionFactory</tt> will be
 * immutable, so changes made to the <tt>Configuration</tt> after
 * building the <tt>SessionFactory</tt> will not affect it.
 *
 * @see net.sf.hibernate.SessionFactory
 * @return a new factory for <tt>Session</tt>s
 */
public SessionFactory buildSessionFactory() throws HibernateException {
	secondPassCompile();
	validate();
	Environment.verifyProperties(properties);
	Properties copy = new Properties();
	copy.putAll(properties);
	Settings settings = buildSettings();
	configureCaches(settings);
	return new SessionFactoryImpl(this, settings);
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
private synchronized SessionFactory getImpl() {
	if (impl==null) {
		try {
			impl = service.buildSessionFactory();
		}
		catch (Exception e) {
			throw new LazyInitializationException(e);
		}
	}
	return impl;
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
public void stop() {
	log.info("stopping service");
	try {
		InitialContext context = NamingHelper.getInitialContext( getProperties() );
		( (SessionFactory) context.lookup(boundName) ).close();
		//context.unbind(boundName);
	}
	catch (Exception e) {
		log.warn("exception while stopping service", e);
	}
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
public static void addInstance(String uid, String name, SessionFactory instance, Properties properties) {
	
	log.debug("registered: " + uid + " (" + ( (name==null) ? "unnamed" : name ) + ')');
	INSTANCES.put(uid, instance);
	if (name!=null) NAMED_INSTANCES.put(name, instance);
	
	//must add to JNDI _after_ adding to HashMaps, because some JNDI servers use serialization
	if (name==null) {
		log.info("Not binding factory to JNDI, no JNDI name configured");
	}
	else {
		
		log.info("Factory name: " + name);
		
		try {
			Context ctx = NamingHelper.getInitialContext(properties);
			NamingHelper.bind(ctx, name, instance);
			log.info("Bound factory to JNDI name: " + name);
			( (EventContext) ctx ).addNamingListener(name, EventContext.OBJECT_SCOPE, LISTENER);
		}
		catch (InvalidNameException ine) {
			log.error("Invalid JNDI name: " + name, ine);
		}
		catch (NamingException ne) {
			log.warn("Could not bind factory to JNDI", ne);
		}
		catch(ClassCastException cce) {
			log.warn("InitialContext did not implement EventContext");
		}
		
	}
	
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
/**
 * Returns session factory
 *
 * @return session factory
 */
public SessionFactory getSessionFactory() {
  if (sessionFactory == null) {
    sessionFactory = ServiceManager.getInstance().getConfigurationService().getSessionFactory();
  }
  return sessionFactory;
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
protected Session getSession() {
	SessionFactory sf = null;
    try {        	
    	sf = HibernateLocator.getSessionFactory();
        Session sessio = sf.openSession();
        return sessio;
    } catch (HibernateException e) {        
        throw new EJBException(e);
    }finally{
    	sf = null;
    }
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
/**
 * This method will read configuration file from classpath 
 * and get the name of the hibernate configuration file.
 * Once we know the name of the hibernate config file then
 * this method will build the sessionFactory and put in Hashtable.
 *
 */
private static void init(){
	ApplicationConfiguration ac = ApplicationConfiguration.getInstance();
	applicationName = ac.getProperty("applicationName");
	String hibernate_config_file_name = ac.getProperty("hibernateConfigFileName");
	SessionFactory sf = initSessionFactory(hibernate_config_file_name);
	factories.put(applicationName,sf);
	
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
/**
 * This method will read configuration file from classpath 
 * and get the name of the hibernate configuration file.
 * Once we know the name of the hibernate config file then
 * this method will build the sessionFactory and put in Hashtable.
 *
 */
private static void init(){
	applicationName="xyz";
	String fileName ="";
	try{
		URL url =  ClassLoader.getSystemResource("hibernate.cfg.xml"); 
        fileName = url.getFile();
	}catch(Exception ex){
		ex.printStackTrace();
	}
	
	SessionFactory sf = initSessionFactory(fileName);
	factories.put(applicationName,sf);
	
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
SessionFactory buildSessionFactory() throws HibernateException {
	log.info( "starting service at JNDI name: " + boundName );
	log.info( "service properties: " + properties );
	return getConfiguration().buildSessionFactory();
}
 

import net.sf.hibernate.SessionFactory; //导入依赖的package包/类
SessionFactory getSessionFactory() {
	return sessionFactory;
}