Setting properties programmatically in Hibernate

Question

How can I ensure that all properties are loaded from hibernate.cfg.xml, then add additional properties programmatically? I saw the following code snippet but it looks like a

Answer 1

This is working properly than i thought

public class HibernateUtil {

    private static final SessionFactory sessionFactory;

    static {
        try {
            // Create the SessionFactory from standard (hibernate.cfg.xml) 
            // config file.


            Properties c = new Properties();
            c.setProperty("hibernate.dialect", "org.hibernate.dialect.MySQLDialect");
            c.setProperty("hibernate.connection.driver_class", "com.mysql.jdbc.Driver");
            c.setProperty("hibernate.connection.url", "jdbc:mysql://localhost:3306/mydiscou_billing?zeroDateTimeBehavior=convertToNull");
            c.setProperty("hibernate.connection.username", "root");
            c.setProperty("hibernate.connection.password", "123");
            c.setProperty("hibernate.connection.autoReconnect", "true");

            c.setProperty("connection.provider_class", "org.hibernate.connection.C3P0ConnectionProvider");
            c.setProperty("c3p0.min_size", "5");
            c.setProperty("c3p0.max_size", "20");
            c.setProperty("c3p0.timeout", "1800");
            c.setProperty("c3p0.max_statements", "100");
            c.setProperty("hibernate.c3p0.testConnectionOnCheckout", "true");




            sessionFactory = new AnnotationConfiguration().setProperties(c).configure().buildSessionFactory();
        } catch (Throwable ex) {
            // Log the exception. 
            System.err.println("Initial SessionFactory creation failed." + ex);
            throw new ExceptionInInitializerError(ex);
        }
    }

    public static SessionFactory getSessionFactory() {
        return sessionFactory;
    }
}