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In my service class I would like to have something like: class ClientService { // Authorize // Returns true: Authorization successful // Returns false: Authorization failed public boolean authorize(String id, String password) { //Here I would like to check if an active transaction exists. //If it exists, use that one, else create a new session and start //a new transaction. //For example: Session session = HibernateUtil.getSessionFactory().getCurrentSession(); if(!session.SOMEMETHOD_CHECK_IF_TRANSACTION_IS_ACTIVE) { session.beginTransaction(); } Client client = clientDAO.get(id); if (client != null) { if (client.getPassword().equals(password)) { logger.debug("Authorization successful. ID: " + client.getId() + ", password: " + client.getPassword()); return true; } else { logger.error("Authorization unsuccessful"); return false; } else { logger.debug("Authorization unsuccessful. No client exists with ID: " + id); return false; } } } Notice the commented text after the method head. I'm not so familiar with Hibernate, but I think it would be great if the service methods check if transaction exists, use it, otherwise create a new one and close it. If it is possible, is there any performance reasons (or others) that I should have in mind? Or is it any other way to perform this kind of thing? Best regards

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