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

Abstracting the configuration


One of the most common ways to configure NHibernate is to put the configuration into the Web.config or App.config file of the application. Other settings for your application are already stored here such as application settings in the <appSettings> block and database connection strings in the <connectionStrings> block.

By placing our configuration information in the Web.config, we can consolidate all of our configuration information together and take advantage of the available protections on that file such as cryptography and file separation, which we will talk about a little later.

In order to take advantage of mapping in the Web.config (or App.config) file, we need to add a configuration section handler declaration at the top of our configuration file, just like the one we added for log4net in the previous chapter. Inside the <configSections> element, we need to add a new <section> handler element with a name property of hibernate-configuration...