Book Image

NHibernate 2 Beginner's Guide

By : Aaron Cure
Book Image

NHibernate 2 Beginner's Guide

By: Aaron Cure

Overview of this book

<p>NHibernate is an open source object-relational mapper, or simply put, a way to retrieve data from your database into standard .NET objects. Quite often we spend hours designing the database, only to go back and re-design a mechanism to access that data and then optimize that mechanism. This book will save you time on your project, providing all the information along with concrete examples about the use and optimization of NHibernate.<br /><br />This book is an approachable, detailed introduction to the NHibernate object-relational mapper and how to integrate it with your .NET projects. If you're tired of writing stored procedures or maintaining inline SQL, this is the book for you.<br /><br />Connecting to a database to retrieve data is a major part of nearly every project, from websites to desktop applications to distributed applications. Using the techniques presented in this book, you can access data in your own database with little or no code.<br /><br />This book covers the use of NHibernate from a first glance at retrieving data and developing access layers to more advanced topics such as optimization and Security and Membership providers. It will show you how to connect to multiple databases and speed up your web applications using strong caching tools. We also discuss the use of third-party tools for code generation and other tricks to make your development smoother, quicker, and more effective.</p>
Table of Contents (19 chapters)
NHibernate 2
Credits
About the Author
About the Reviewers
Preface
Index

Time for action – getting ready


Before we actually connect to the database, we need to do a little "housekeeping". Just a note, if you run into trouble (that is, your code doesn't work like the walkthrough), then don't panic. See the troubleshooting section at the end of this Time for action section.

  1. Before we get started, make sure that you have all of the Mapping and Common files and that your Mapping files are included as "Embedded Resources" (if you're not sure, see Chapter 4, Data Cartography). Your project should look as shown in the following screenshot:

  2. The first thing we need to do is create a new project to use to create our sessions. Right-click on the Solution 'Ordering' and click on Add | New Project.

  3. For our tests, we will use a Console Application and name it Ordering.Console. Use the same location as your previous project.

  4. Next, we need to add a few references. Right-click on the References folder and click on Add Reference. In VB.NET, you need to right-click on the Ordering...