Book Image

Entity Framework Tutorial (Update) - Second Edition

By : Joydip Kanjilal
Book Image

Entity Framework Tutorial (Update) - Second Edition

By: Joydip Kanjilal

Overview of this book

The ADO.NET Entity Framework from Microsoft is a new ADO.NET development framework that provides a level of abstraction for data access strategies and solves the impedance mismatch issues that exist between different data models This book explores Microsoft’s Entity Framework and explains how it can used to build enterprise level applications. It will also teach you how you can work with RESTful Services and Google’s Protocol Buffers with Entity Framework and WCF. You will explore how to use Entity Framework with ASP.NET Web API and also how to consume the data exposed by Entity Framework from client applications of varying types, i.e., ASP.NET MVC, WPF and Silverlight. You will familiarize yourself with the new features and improvements introduced in Entity Framework including enhanced POCO support, template-based code generation, tooling consolidation and connection resiliency. By the end of the book, you will be able to successfully extend the new functionalities of Entity framework into your project.
Table of Contents (16 chapters)
Entity Framework Tutorial Second Edition
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Parallel LINQ


Parallel LINQ is a concurrency execution engine from Microsoft that can be used to execute LINQ queries in parallel by leveraging the multicore processors. It is a part of the managed concurrency library called Parallel Extensions Library. The Parallel Extensions library is comprised of the following:

  • Task Parallel Library (TPL)

  • Parallel LINQ (PLINQ)

In their MSDN article, Running Queries On Multi-Core Processors, Joe Duffy and Ed Essey state:

"PLINQ is a query execution engine that accepts any LINQ-to-Objects or LINQ-to-XML query and automatically utilizes multiple processors or cores for execution when they are available."

The reference is available at: http://msdn.microsoft.com/en-us/magazine/cc163329.aspx.

The following code snippet illustrates how PLINQ can be used:

Int32[] data = new Int32[100];
   for (intintvar index = 0; index < 100; data[index] =
   index + 1, index++);
   var result = from x in data.AsParallel() select x;
   result.ForAll(p => Console.WriteLine...