jdo

import java.io.File;
import java.util.Properties;
import javax.jdo.JDOHelper;
import javax.jdo.PersistenceManager;
import javax.jdo.PersistenceManagerFactory;
//import org.datanucleus.api.jdo.JDOPersistenceManagerFactory;

public class Main {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Kategoria kategoria1 = new Kategoria("Rock");


		Properties properties = new Properties();
		properties.setProperty("javax.jdo.Persiste", "ofr");
		//properties.setProperty("javax.jdo.PersistenceManagerFactoryClass", "org.datanucleus.api.jdo.JDOPersistenceManagerFactory");
		properties.setProperty("javax.jdo.option.ConnectionURL","jdbc:mysql://localhost:3306/jdo");
		properties.setProperty("javax.jdo.option.ConnectionDriverName","com.mysql.jdbc.Driver");
		properties.setProperty("javax.jdo.option.ConnectionUserName","root");
		properties.setProperty("javax.jdo.option.ConnectionPassword","root");
		PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory(properties);

		PersistenceManager pm = pmf.getPersistenceManager();

		//File propsFile = new File("datanucleus.properties");
		//PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory(propsFile);
		//PersistenceManagerFactory pmf = JDOHelper.getPersistenceManagerFactory("datanucleus.properties");
		//PersistenceManager pm = pmf.getPersistenceManager();

		try {
			 pm.currentTransaction().begin();

		}
		finally {
			// Close the database and active transaction:
			if (pm.currentTransaction().isActive())
			pm.currentTransaction().rollback();
			if (!pm.isClosed())
			pm.close();
			}

	}

}