book

Professional ASP.NET Design Patterns

Name: Professional ASP.NET Design Patterns
Author: Scott Millett
ISBN: 9780470292785

by Scott Millett

July 2010

Intermediate to advanced

720 pages

16h 48m

English

Wrox

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Copyright
ABOUT THE AUTHOR
CREDITS
ACKNOWLEDGMENTS
FOREWORD
INTRODUCTION
WHO THIS BOOK IS FORWHAT THIS BOOK COVERSHOW THIS BOOK IS STRUCTUREDPart 1: Introducing Patterns and PrinciplesChapter 1: The Pattern for Successful ApplicationsChapter 2: Dissecting the Pattern's PatternPart 2: The Anatomy of an ASP.NET Application: Learning and Applying PatternsChapter 3: Layering Your Application and Separating Your ConcernsChapter 4: The Business Logic Layer: OrganizationChapter 5: The Business Logic Layer: PatternsChapter 6: The Service LayerChapter 7: The Data Access LayerChapter 8: The Presentation LayerChapter 9: The User Experience LayerPart 3: Case Study: The Online E-Commerce StoreChapter 10: Requirements and InfrastructureChapter 11: Creating the Product CatalogChapter 12: Implementing the Shopping BasketChapter 13: Customer MembershipChapter 14: Ordering and PaymentCONVENTIONSSOURCE CODEERRATAP2P.WROX.COM
I. Introducing Patterns and Principles
1. The Pattern for Successful Applications
1.1. DESIGN PATTERNS EXPLAINED1.1.1. Origins1.1.2. Necessity1.1.3. Usefulness1.1.4. What They Are Not1.2. DESIGN PRINCIPLES1.2.1. Common Design Principles1.2.1.1. Keep It Simple Stupid (KISS)1.2.1.2. Don't Repeat Yourself (DRY)1.2.1.3. Tell, Don't Ask1.2.1.4. You Ain't Gonna Need It (YAGNI)1.2.1.5. Separation of Concerns (SoC)1.2.2. The S.O.L.I.D. Design Principles1.2.2.1. Single Responsibility Principle (SRP)1.2.2.2. Open-Closed Principle (OCP)1.2.2.3. Liskov Substitution Principle (LSP)1.2.2.4. Interface Segregation Principle (ISP)1.2.2.5. Dependency Inversion Principle (DIP)1.2.2.6. Dependency Injection (DI) and Inversion of Control (IoC)1.3. FOWLER'S ENTERPRISE DESIGN PATTERNS1.3.1. Layering1.3.2. Domain Logic Patterns1.3.2.1. Transaction Script1.3.2.2. Active Record1.3.2.3. Domain Model1.3.3. Object Relational Mapping1.3.3.1. Unit of Work1.3.3.2. Repository1.3.3.3. Data Mapper1.3.3.4. Identity Map1.3.3.5. Lazy Loading1.3.3.6. Query Object1.3.4. Web Presentation Patterns1.3.5. Base, Behavioral, and Structural Patterns1.3.5.1. Null Object Pattern1.3.5.2. Separated Interface1.3.5.3. Gateway1.4. OTHER DESIGN PRACTICES OF NOTE1.4.1. Test-driven Development (TDD)1.4.2. Domain-driven Design (DDD)1.4.3. Behavior-driven Design (BDD)1.5. SUMMARY
2. Dissecting the Pattern's Pattern
2.1. HOW TO READ DESIGN PATTERNS2.1.1. Gang of Four Pattern Template2.1.2. Simplified Template2.1.2.1. Name and Intent2.1.2.2. UML Diagram2.1.2.3. Code Example2.2. DESIGN PATTERN GROUPS2.2.1. Creational2.2.2. Structural2.2.3. Behavioral2.3. HOW TO CHOOSE AND APPLY A DESIGN PATTERN2.4. A QUICK PATTERN EXAMPLE2.4.1. Refactoring to Principles2.4.1.1. The Dependency Inversion Principle2.4.1.2. The Dependency Injection Principle2.4.2. Refactoring to the Adapter Pattern2.4.3. Leveraging Enterprise Patterns2.4.3.1. Null Object Pattern2.5. SUMMARY
II. The Anatomy of an ASP.NET Application: Learning and Applying Patterns

3. Layering Your Application and Separating Your Concerns
3.1. APPLICATION ARCHITECTURE AND DESIGN3.1.1. Antipattern — Smart UI3.1.2. Separating Your Concerns3.1.2.1. Business Layer3.1.2.2. Service Layer3.1.2.3. Data Access Layer3.1.2.4. Presentation Layer3.1.2.5. User Experience Layer3.2. SUMMARY
4. The Business Logic Layer: Organization
4.1. UNDERSTANDING BUSINESS ORGANIZATIONAL PATTERNS4.1.1. Transaction Script4.1.2. Active Record4.1.3. Domain Model4.1.3.1. POCO and PI4.1.3.2. Code Example4.1.4. Anemic Domain Model4.1.5. Domain-Driven Design4.1.5.1. The Ubiquitous Language4.1.5.2. Entities4.1.5.3. Value Objects4.1.5.4. Aggregates and Aggregate Roots4.1.5.5. Domain Services4.1.5.6. Application Services4.1.5.7. Repository4.1.5.8. Layering4.2. SUMMARY
5. The Business Logic Layer: Patterns
5.1. LEVERAGING DESIGN PATTERNS5.1.1. Factory Method5.1.1.1. Intent5.1.1.2. UML5.1.1.3. Code Example5.1.2. Decorator5.1.2.1. Intent5.1.2.2. UML5.1.2.3. Code Example5.1.3. Template Method5.1.3.1. Intent5.1.3.2. UML5.1.3.3. Code Example5.1.4. State Pattern5.1.4.1. Intent5.1.4.2. UML5.1.4.3. Code Example5.1.5. Strategy5.1.5.1. Intent5.1.5.2. UML5.1.5.3. Code Example5.2. LEVERAGING ENTERPRISE PATTERNS5.2.1. Specification Pattern5.2.1.1. Intent5.2.1.2. Code Example5.2.2. Composite Pattern5.2.2.1. Intent5.2.2.2. UML5.2.2.3. Code Example5.2.3. Layer Supertype Pattern5.2.3.1. Intent5.2.3.2. Code Example5.3. APPLYING DESIGN PRINCIPLES5.3.1. Dependency Inversion Principle and the Dependency Injection Pattern5.3.1.1. Intent5.3.1.2. Code Example5.3.2. Interface Segregation Principle5.3.2.1. Intent5.3.2.2. Code Example5.3.3. Liskov Substitution Principle5.3.3.1. Intent5.3.3.2. Code Example5.4. SUMMARY
6. The Service Layer
6.1. DESCRIBING THE SERVICE LAYER6.1.1. Service Oriented Architecture6.1.2. Four Tenets of SOA6.1.2.1. Boundaries Are Explicit6.1.2.2. Services Are Autonomous6.1.2.3. Services Share Schema and Contract, Not Class6.1.2.4. Service Compatibility Is Based on Policy6.1.3. The Facade Design Pattern6.1.3.1. Intent6.1.3.2. UML6.2. LEVERAGING MESSAGING PATTERNS6.2.1. The Document Message and the Request-Response Patterns6.2.2. The Reservation Pattern6.2.3. The Idempotent Pattern6.3. AN SOA EXAMPLE6.3.1. Domain Model and Repository6.3.2. Service Layer6.3.3. Client Proxy6.3.4. Client6.4. SUMMARY
7. The Data Access Layer
7.1. DESCRIBING THE DAL7.2. DATA ACCESS STRATEGIES7.2.1. The Repository Pattern7.2.2. Data Access Objects Pattern7.3. PATTERNS IN DATA ACCESS7.3.1. Unit of Work7.3.2. Data Concurrency Control7.3.3. Lazy Loading and the Proxy Pattern7.3.3.1. Intent7.3.3.2. UML7.3.3.3. Code Example7.3.4. Identity Map7.3.5. Query Object Pattern7.4. USING AN OBJECT RELATIONAL MAPPER7.4.1. NHibernate7.4.2. MS Entity Framework7.4.3. ORM Code Example7.4.3.1. Library Domain Model7.4.3.2. The Service Layer7.4.3.3. Database7.4.3.4. NHibernate Repository7.4.3.5. Entity Framework Repository7.4.3.6. Presentation7.4.3.7. Raw ADO.NET Repository7.5. SUMMARY
8. The Presentation Layer
8.1. INVERSION OF CONTROL8.1.1. Factory Design Pattern8.1.2. Service Locator8.1.3. IoC Containers8.1.3.1. StructureMap8.2. MODEL-VIEW-PRESENTER8.2.1. ASP.NET Web Forms with MVP8.3. FRONT CONTROLLER8.3.1. Command Pattern8.3.1.1. Intent8.3.1.2. UML8.3.1.3. Code Example8.3.2. Chain of Responsibility Pattern8.3.2.1. Intent8.3.2.2. UML8.3.2.3. Code Example8.4. MODEL-VIEW-CONTROLLER8.4.1. ViewModel Pattern8.4.2. The ASP.NET MVC Framework8.4.2.1. Mapping ViewModels with AutoMapper8.4.3. Castle MonoRail8.5. PAGE CONTROLLER8.6. SUMMARY
9. The User Experience Layer
9.1. WHAT IS AJAX?9.2. USING JAVASCRIPT LIBRARIES9.3. UNDERSTANDING AJAX PATTERNS9.3.1. Periodic Refresh and Timeout9.3.1.1. Periodic Refresh and Timeout Pattern Code Example9.3.1.2. Periodic Refresh Implementation Script9.3.1.3. Timeout Pattern Implementation Script9.3.1.4. Using Firefox and Firebug for Web Development9.3.2. Unique URL9.3.3. Databinding with JavaScript Templates9.3.3.1. History and Templates Code Example9.3.4. Predictive Fetch9.3.4.1. Predictive Fetch Code Example9.4. SUMMARY
III. Case Study: The Online E-Commerce Store
10. Requirements and Infrastructure
10.1. AGATHA'S CLOTHING STORE REQUIREMENTS10.1.1. Product Catalog and Basket Screens10.1.2. Customer Account Screens10.1.3. Checkout Screens10.1.4. Caching and Logging10.2. ARCHITECTURE10.2.1. Setting Up the Supporting Infrastructure10.2.1.1. Domain Layer Supertype10.2.1.2. Unit of Work Pattern10.2.1.3. Query Object Pattern10.2.1.4. Application Configuration Settings10.2.1.5. Logging10.2.1.6. E-Mail Service10.2.1.7. Helper Classes10.3. SUMMARY
11. Creating The Product Catalog
11.1. CREATING THE PRODUCT CATALOG11.1.1. Product Catalog Model11.1.2. Product Catalog Data Tables11.1.3. Product Catalog Repositories11.1.4. Product Services11.1.4.1. Product Views11.1.4.2. ProductCatalogService11.1.5. Controllers11.1.6. Product Catalog Views11.1.7. Setting Up IoC11.2. SUMMARY
12. Implementing the Shopping Basket
12.1. IMPLEMENTING THE BASKET12.1.1. Basket Domain Model12.1.2. Create the Basket Tables12.1.3. NHibernate Mapping12.1.4. Basket Service12.1.5. Basket Controller and Basket Views12.2. SUMMARY
13. Customer Membership
13.1. CUSTOMER MEMBERSHIP13.1.1. Customer Model13.1.2. Customer Data Tables13.1.3. Customer NHibernate Mappings13.1.4. Customer Service13.1.5. Authentication Service13.1.5.1. Local Authentication with ASP.NET Membership13.1.5.2. Web-Based Authentication with Janrain13.1.5.3. Authentication Cookie13.1.6. Customer Controller13.1.7. Account Controllers13.1.8. Customer Membership Views13.1.9. Authentication Views13.2. SUMMARY
14. Ordering and Payment
14.1. CHECKOUT14.1.1. Order Model14.1.2. Order Data Tables14.1.3. Order NHibernate Mappings14.1.4. Order Service14.1.5. Taking Payment with PayPal14.1.6. Order, Payment, and Checkout Controllers14.1.7. Order and Checkout Views14.2. SUMMARY

Content preview from Professional ASP.NET Design Patterns

Chapter 2. Dissecting the Pattern's Pattern

WHAT'S IN THIS CHAPTER?

How to read GoF design patterns using the design templates
Learning and understanding the design pattern groupings
Knowing how to choose and apply a design pattern
A quick example on refactoring existing code to use design patterns and principles to increase maintainability

Many books on the market give an overview and a template for individual design patterns but leave it up to the developer to learn how to decipher and apply the pattern. In this chapter, you will gain the practical knowledge necessary to use a design pattern solution template and apply it to your code base. You will then learn about the 23 design patterns and the groups they belong to. Finally, you will run through a quick exercise in which you will implement some design principles and patterns that you have read about.

HOW TO READ DESIGN PATTERNS

In the original design patterns book by the Gang of Four, each pattern was presented in a pattern template. The idea behind the pattern template was to enable the reader to decipher a pattern and learn about what set of problems it was designed to solve. In this book, I use a simplified version of the GoF pattern template to describe the GoF patterns, Fowler's enterprise patterns, and the S.O.L.I.D. design principles.

Gang of Four Pattern Template

The GoF book described each pattern using the following template:

Pattern Name and Classification: The Pattern Name is important because it helps to form the common ...

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