This Wrox Blox demonstrates how to start using NHibernate in line business applications using ASP.NET and VB.NET. Using NHibernate will speed up your application development by removing the need to build your own Data Access Layer (DAL). In addition, you can focus solely on the business problem instead of the infrastructure concerns. Using a simple demo application as an example, this Wrox Blox shows how easy it is to get started with NHibernate and build your DAL in minutes instead of hours. Readers will also see how the POCO pattern enables you to keep your DAL as unobtrusive as possible as well as being interchangeable for future DAL implementations. You will also see how NHibernate has many enterprise patterns built into it, like the Unit of Work pattern and the Identity Map. Table of Contents What Is an Object Relational Mapper? Why NHibernate? Part 1: Getting Started with NHibernate A Quick Demo Part 2: The NHibernate Framework Architecture and Core Concepts Mapping Your Entities: Impedance Mismatch Persisting Business Objects Part 3: Using NHibernate Introducing the Project and Laying out the Solution Framework Designing the Domain Model NHibernate Repository Project: Base Class Managing Products Managing Customers NHibernate Repository Project: Refactoring and Session Management Managing Orders The Database-A Question of Storage Presentation with the Model-View-Presenter Pattern User Interface: ASP.NET Part 4: Other NHibernate Bits and Pieces Other Querying Methods Mapping Inheritance What Kind of SQL Is Being Produced? Wrap Up Scott Millett

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