Class HibernateUtil cannot be resolved

[Rahul somanath]

Hi All

I am trying to execute my first program on Hibernate. I am executing the HelloWorld program in the book "Java persistance with hibernate".
I have downloaded hibernate-distribution-3.5.2-Final i have taken all the jar files under the folder "hibernate-distribution-3.5.2-Final\lib\required" and added them to the class path

I am trying to execute the program

public class HelloWorld {
      public static void main(String[] args) {
           
          // First unit of work
           Session session = HibernateUtil.getSessionFactory().openSession();
           Transaction tx = session.beginTransaction();
           Message message = new Message("Hello World");
           Long msgId = (Long) session.save(message);
           tx.commit();
           session.close();

          // Second unit of work
          Session newSession=HibernateUtil.getSessionFactory().openSession();

         Transaction newTransaction = newSession.beginTransaction();
         List messages = newSession.createQuery("from Message m order by m.text asc").list();

         System.out.println( messages.size() + " message(s) found:" );
 
         for ( Iterator iter = messages.iterator();iter.hasNext(); ) {
                  Message loadedMsg = (Message) iter.next();
                  System.out.println( loadedMsg.getText() );
         }
         
          newTransaction.commit();
          newSession.close();

          // Shutting down the application
         HibernateUtil.shutdown();
     }
}

But i am getting the error Unable to resolve the class HibernateUtil. Please let help me in resolving this problem

Thanks in advance
Fierof2

[Rahul somanath]

Its a compile time exception that i am getting. The eclipse is not resolving the import statement.

I dont know under which jar is the HibernateUtil.java file is

The required folder under hibernate-distribution-3.5.2-Final-dist\hibernate-distribution-3.5.2-Final\lib\required contains the following jars

antlr-2.7.6.jar
commons-collections-3.1.jar
dom4j-1.6.1.jar
javassist-3.9.0.GA.jar
jta-1.1.jar
slf4j-api-1.5.8.jar

[Rahul somanath]

I have also added the hibernate3.jar file to the class path and i am still facing the same problem.

[Subhendu Mahanta]

Here is your HibernateUtil class:

import org.hibernate.SessionFactory;
import org.hibernate.cfg.Configuration;

public class HibernateUtil {
	
	private static SessionFactory sessionFactory;
	
	static{
		try {
			sessionFactory = new Configuration().configure().buildSessionFactory();
		} catch (Throwable e) {
			throw new ExceptionInInitializerError(e);
		}
	}

	public static SessionFactory getSessionFactory(){
		return sessionFactory;
	}
	
	public static void shutDown(){
		//closes caches and connections
		getSessionFactory().close();
	}
}

[Rahul somanath]

Thnaks a lot Subhendu.

Just now i came to know that tThe HibernateUtil is a separate Java file provided by the Book. I went to their site and got this file.

Instead of providing the java file you could have mention this info and it would have made me clear.

Thanks a lot for for the assistance.

Thanks and Regards

[Subhendu Mahanta]

It is also available in Hibernate reference http://docs.jboss.org/hibernate/core/3.5/reference/en/html/tutorial.html section 1.1.6. Startup and helpers.
Because reference is also written by same people: Christian Bauer & Gavin King.