Java tutorial
/* ==================================================================== * Limited Evaluation License: * * The exclusive owner of this work is The Openrate Project. * This work, including all associated documents and components * is Copyright The Openrate Project 2006-2014. * * The following restrictions apply unless they are expressly relaxed in a * contractual agreement between the license holder or one of its officially * assigned agents and you or your organisation: * * 1) This work may not be disclosed, either in full or in part, in any form * electronic or physical, to any third party. This includes both in the * form of source code and compiled modules. * 2) This work contains trade secrets in the form of architecture, algorithms * methods and technologies. 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In no event shall * The Openrate Project or its officially assigned agents be liable to any * direct, indirect, incidental, special, exemplary, or consequential damages * (including but not limited to, procurement of substitute goods or services; * Loss of use, data, or profits; or any business interruption) however caused * and on theory of liability, whether in contract, strict liability, or tort * (including negligence or otherwise) arising in any way out of the use of * this software, even if advised of the possibility of such damage. * This software contains portions by The Apache Software Foundation, Robert * Half International. * ==================================================================== */ /* ========================== VERSION HISTORY ========================= * $Log: HibernateUtil.java,v $ * Revision 1.4 2014-01-27 14:57:58 max * Add unit test initial version * * Revision 1.3 2010-06-30 22:18:58 ian * removed extraneous new lines * * Revision 1.2 2008/03/15 17:46:38 ian * 0.661 Allow manual management of transactions to permit grouped methods in a logical transaction * * Revision 1.1 2007/10/08 14:46:34 ian * 0.621 Updated class names, added getProducts * * Revision 1.4 2007/10/01 21:49:46 ian * 0.621 Code formatting * * Revision 1.3 2007/08/30 20:55:06 ian * Header and minor bug fixes * * Revision 1.2 2007/08/29 16:32:37 ian * Added Logging, minor bug fixes * * ==================================================================== */ package OpenRate.customerinterface.webservices; //~--- non-JDK imports -------------------------------------------------------- import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.hibernate.HibernateException; import org.hibernate.SessionFactory; import org.hibernate.cfg.Configuration; import org.hibernate.classic.Session; //~--- JDK imports ------------------------------------------------------------ import java.io.BufferedReader; import java.io.InputStream; import java.io.InputStreamReader; import java.util.Properties; /** * This class encapsulates the interaction with the Hibernate layer. * * @netbeans.hibernate.util */ public class HibernateUtil { private static Log log = LogFactory.getLog(HibernateUtil.class); public static final ThreadLocal session = new ThreadLocal(); private static SessionFactory sessionFactory; /** * Return the current session factory * * @return */ private static SessionFactory getSessionFactory(boolean useBeansList) { try { if (sessionFactory == null) { if (useBeansList) { // use the J2EE type beans list Configuration configuration = new Configuration(); // load all beans InputStream is = HibernateUtil.class.getResourceAsStream("hibernateBeans.lst"); BufferedReader reader = new BufferedReader(new InputStreamReader(is)); String line; while ((line = reader.readLine()) != null) { configuration.addResource(line); } Properties properties = new Properties(); properties.load(HibernateUtil.class.getResourceAsStream("hibernate.properties")); configuration.setProperties(properties); sessionFactory = configuration.buildSessionFactory(); } else { // Use the plain old session factory sessionFactory = new Configuration().configure().buildSessionFactory(); } } } catch (Throwable ex) { log.error("Initial SessionFactory creation failed.", ex); throw new ExceptionInInitializerError(ex); } return sessionFactory; } public static Session currentSession(boolean useBeansList) throws HibernateException { Session s = (Session) session.get(); if (s == null) { s = getSessionFactory(useBeansList).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(); } } }