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

Why log4net?


There are three primary reasons for choosing log4net as our logging framework. First and foremost, it's an incredibly powerful logging framework with open extensibility. Second, it's open source so there is no charge associated with implementing or using it. Last, but not least, it's bundled with NHibernate because NHibernate uses it as its internal logging framework.

More information about log4net can be found at http://logging.apache.org/log4net.

If we are using log4net, we can simply set a few configuration options and access a number of interesting NHibernate internal log operations. One of the most helpful of these operations is the ability to view the SQL statements as they are generated. You can see a sample of this in the following screenshot:

As you can see, having access to this information is really useful. By knowing the SQL that NHibernate is executing, we can take this SQL statement and execute it directly in our SQL tool, such as SSMS, and see EXACTLY what is being...