Guide to Entity Framework with

Exposing data as a service using WCF Data Services 
205
Why do we need REST? 
205
Resources in REST-based architecture 
207
The REST architectural constraints 
208
The client-server model 
208
Stateless 
208
Cacheable 
209
Code on demand 
209
The uniform interface 
209
Resource management 
209
REST attributes 
209
WebServiceHost 
210
WebHttpBinding 
210
WebHttpBehavior 
210
WebOperationContext 
210
WebMessageFormat 
211
The WebGet attribute 
211
The WebInvoke attribute 
212
UriTemplate 
212

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Table of Contents
[
 vi 
]
REST-based Web Services 
213
What is the OData Protocol? 
214
Working with WCF Data Services and Entity Framework 
217
Working with OData Services using WCF and ASP.NET
MVC Framework 
222
Working with Protobuf WCF Services 
225
Protocol Buffers 
225
Creating Protobuf-net objects 
226
Integrating Protobuf.NET with Visual Studio 
227
Implementing the WCF Service 
227
Specifying binding information 
228
Summary 229
Appendix: Advanced Concepts 
231
REST and REST-based service frameworks 
231
Ruby on Rails 
232
Restlet 
232
Django REST 
233
The Flickr REST API 
233
The Google API 
233
Yahoo Social REST APIs 
234
Exploring OData 
234
HTTP methods, request, and response codes 
236
Abbreviations 238
New features in Entity Framework 7 
238
Suggested reading 
239
Index 241

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[
 vii 
]
Preface
The ADO.NET Entity Framework, the next generation of Microsoft's data access 
technology, is an extended Object Relational Mapping (ORM) technology that makes 
it easy to tie together the data in your database with the objects in your applications. 
This is done by abstracting the object model of an application from its relational or 
logical model. It is an extended ORM in the sense that it provides many additional 
features that a traditional ORM does not.
This book is a clear and concise guide to the ADO.NET Entity Framework. Packed 
with plentiful code examples, this book helps you learn the ADO.NET Entity 
Framework and ADO.NET Data Services and build a better data access layer for 
your application.
The intent of writing this book is updating you to the latest trends and developments 
as far as Entity Framework is concerned.
What this book covers
Chapter 1
, 
Introducing the ADO.NET Entity Framework
, is an introduction to the basics 
of the ADO.NET Entity Framework (EF), its usefulness, features, and benefits.
Chapter 2
, 
Getting Started
, discusses how you can get started with EF, create an Entity 
Data Model (EDM), and write a program to query data.
Chapter 3
, 
Entities, Relationships, and the Entity Data Model
, gives a detailed explanation 
of entities, relationships, and each of the sections of the EDM.
Chapter 4
, 
Working with Stored Procedures in the Entity Data Model
, provides a sample 
application that illustrates how to perform CRUD operations against the EDM.
Chapter 5
, 
Working with Entity Client and Entity SQL
, discusses the Entity SQL query 
language and how to work with the Entity Client provider.

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Preface