View Larger Image	Michael Mahemoff O'Reilly Media, Paperback, Published June 2006, 655 pages, ISBN 0596101805
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Read an excerpt: Chapter 10: Browser-Server Dialogue       Excerpt provided courtesy of O'Reilly Media. Copyright © O'Reilly Media, Inc Written permission from the publisher is required for any use of this material.

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• Web Design/Development : Web Development
• Web Design/Development : Ajax

• O'Reilly Media

Ajax, or Asynchronous JavaScript and XML, exploded onto the scene in the spring of 2005 and remains the hottest story among web developers. With its rich combination of technologies, Ajax provides a strong foundation for creating interactive web applications with XML or JSON-based web services by using JavaScript in the browser to process the web server response.

Ajax Design Patterns shows you best practices that can dramatically improve your web development projects. It investigates how others have successfully dealt with conflicting design principles in the past and then relays that information directly to you.

The patterns outlined in the book fall into four categories:

* Foundational technology: Examines the raw technologies required for Ajax development
* Programming: Exposes techniques that developers have discovered to ensure their Ajax applications are maintainable
* Functionality and usability: Describes the types of user interfaces you'll come across in Ajax applications, as well as the new types of functionality that Ajax makes possible
* Development: Explains the process being used to monitor, debug, and test Ajax applications

Ajax Design Patterns will also get you up to speed with core Ajax technologies, such as XMLHttpRequest, the DOM, and JSON. Technical discussions are followed by code examples so you can see for yourself just what is-and isn't-possible with Ajax. This handy reference will help you to produce high-quality Ajax architectures, streamline web application performance, and improve the user experience.

Review

"Michael Mahemoff's Ajax Design Patterns is a truly comprehensive compendium of web application design expertise, centred around but not limited to Ajax techniques. Polished nuggets of design wisdom are supported by tutorials and real-world code examples resulting in a book that serves not only as an intermediate to expert handbook but also as an extensive reference for building rich interactive web applications." --Brent Ashley, remote scripting pioneer

Table of Contents

Preface

Part One. Introduction

1. Introducing Ajax
     Ajax and the Usable Web
     The Rise of Ajax
     Ajaxifying the Web: The Story of Portals
     Webifying the Desktop: The Story of Office Applications
     Characteristics of Ajax Applications
     The Ajax Technologies
     Anatomy of a Server Call
     Ajax Trends
     Conclusions

2. A Pattern-Led Tutorial
     Ajax Technologies in a Blink
     Ajaxifying a Web App: One Pattern at a Time
     Projects and Katas
     Conclusions

3. Ajax Design: Principles and Patterns
     Desirable Attributes of Ajax Applications
     Designing for Ajax
     Ajax Patterns Overview
     Anatomy of a Pattern
     Ajax Patterns Demos
     Conclusions

Part Two. Foundational Technology Patterns

4. Ajax App
     Ajax App

5. Display Manipulation
     Display Morphing
     Page Rearrangement

6. Web Remoting
     Web Service
     XMLHttpRequest Call
     IFrame Call
     HTTP Streaming
     On-Demand JavaScript

7. Dynamic Behavior
     User Action
     Scheduling

8. Extended Technologies
     Richer Plugin

Part Three. Programming Patterns

9. Web Services
     RESTful Service
     RPC Service
     Ajax Stub
     HTML Message
     Plain-Text Message
     XML Message
     JSON Message

10. Browser-Server Dialogue
     Call Tracking
     Periodic Refresh
     Submission Throttling
     Explicit Submission
     Distributed Events
     Cross-Domain Proxy

11. DOM Population
     XML Data Island
     Browser-Side XSLT
     Browser-Side Templating

12. Code Generation and Reuse
     Server-Side Code Generation
     Cross-Browser Component

13. Performance Optimization
     Browser-Side Cache
     Predictive Fetch
     Guesstimate
     Multi-Stage Download
     Fat Client

Part Four. Functionality and Usability Patterns

14. Widgets
     Slider
     Progress Indicator
     Drilldown
     Data Grid
     Rich Text Editor
     Suggestion
     Live Search
     Live Command-Line
     Live Form

15. Page Architecture
     Drag-And-Drop
     Sprite
     Popup
     Malleable Content
     Microlink
     Portlet
     Status Area
     Update Control
     Virtual Workspace

16. Visual Effects
     One-Second Spotlight
     One-Second Mutation
     One-Second Motion
     Highlight

17. Functionality
     Lazy Registration
     Direct Login
     Host-Proof Hosting
     Timeout
     Heartbeat
     Unique URLs

Part Five. Development Patterns

18. Diagnosis
     Logging
     Debugging
     DOM Inspection
     Traffic Sniffing

19. Testing
     Simulation Service
     Browser-Side Test
     Service Test
     System Test

Part Six. Appendixes

A. Ajax Frameworks and Libraries

B. Setting Up the Code Examples

C. Patterns and Pattern Languages

D. References

Index

About the Author

Michael Mahemoff holds a PhD in Computer Science and Software Engineering from the University of Melbourne, where his thesis was "Design Reuse in Software Engineering and Human-Computer Interaction." He lives in London and consults on software development issues in banking, health care, and logistics.

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