Best way to insert a good amount of records in hibernate

Question

I\'m using hibernate + play! framework at work, is there a \"best practice\" on inserting a good amount of records using hibernate? They are around 6,000 to 10,000 per text

Answer 1

Best is to use StatelessSessions. Consider the following example from (http://docs.jboss.org/hibernate/orm/3.3/reference/en-US/html/batch.html):

StatelessSession session = sessionFactory.openStatelessSession();
Transaction tx = session.beginTransaction();

ScrollableResults customers = session.getNamedQuery("GetCustomers")
    .scroll(ScrollMode.FORWARD_ONLY);
while ( customers.next() ) {
    Customer customer = (Customer) customers.get(0);
    customer.updateStuff(...);
    session.update(customer);
}

tx.commit();
session.close();