Book Image

Java Hibernate Cookbook

By : Yogesh Prajapati, Vishal Ranapariya
Book Image

Java Hibernate Cookbook

By: Yogesh Prajapati, Vishal Ranapariya

Overview of this book

This book will provide a useful hands-on guide to Hibernate to accomplish the development of a real-time Hibernate application. We will start with the basics of Hibernate, which include setting up Hibernate – the pre-requisites and multiple ways of configuring Hibernate using Java. We will then dive deep into the fundamentals of Hibernate such as SessionFactory, session, criteria, working with objects and criteria. This will help a developer have a better understanding of how Hibernate works and what needs to be done to run a Hibernate application. Moving on, we will learn how to work with annotations, associations and collections. In the final chapters, we will see explore querying, advanced Hibernate concepts and integration with other frameworks.
Table of Contents (15 chapters)
Java Hibernate Cookbook
About the Authors
About the Reviewers

Opening a stateless session

Basically, a stateless session is used to perform only one task. It does not take place in any type of cache. A cache is used to store the frequently used objects in the current context. There are some cases where a stateless session is very useful; for example, if we are reading data from a file and inserting it into the database, we don't need to cache that data further because this is a one-time operation.

Apart from this, a stateless session does not use dirty checking while performing a transactional operation. The collections, as well as hibernate's event model and interceptors, are ignored by a stateless session.

How to do it…

Now, let's look at how to create a stateless session. It's the same as creating a session, but the method is different:

  1. Enter the following code to open a stateless session:

    SessionFactory sessionFactory = HibernateUtil.getSessionFactory();
    Session session = sessionFactory.openStatelessSession();