<?xml version='1.0' encoding='utf-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
    "-//Hibernate/Hibernate Configuration DTD//EN"
    "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">

<hibernate-configuration>

    <!-- a SessionFactory instance listed as /jndi/name -->
    <session-factory
        name="java:hibernate/SessionFactory">

        <!-- properties -->
        <property name="connection.datasource">java:/jdbc/jndiUrlaubsplaner</property>
        <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property>
        <property name="show_sql">false</property>
        <property name="transaction.factory_class">
            org.hibernate.transaction.JTATransactionFactory
        </property>

    </session-factory>

</hibernate-configuration>

private void initalizeHibernate() {
       Contract.require(!isHibernateInitialized(), "Hibernate is not initialized yet");
       try
       {
           // Konfigurationsdateien einlesen
           URL mappingURL = getClass().getClassLoader().getResource("mapping.xml");
           InputStream in = getClass().getClassLoader().getResourceAsStream("hibernate.cfg.xml");

           Properties properties = new Properties();
           properties.load(in);
           System.out.println("test3");
           // Hibernate konfigurieren
           Configuration configuration = new Configuration();
           configuration.setProperties(properties);
           configuration.addURL(mappingURL);
   System.out.println("test4");
           // SessionFactory merken! Sie erzeugt die benötigten Sessions.
           _sessionFactory = configuration.configure("hibernate.cfg.xml").buildSessionFactory();
       }
       catch (HibernateException e)
       {
           System.out.println("Probleme beim Konfigurieren von Hibernate!");
           e.printStackTrace();
       }
       catch (IOException e)
       {
           System.out.println("Probleme beim Zugriff auf die Datei hibernate.properties");
           e.printStackTrace();
       }
   
       Contract.ensure(isHibernateInitialized(), "Hibernate is successfully initialized");
   }