9780137129263

"Successful, high-value WebSphere applications begin with effective architecture. Now, one of IBM's leading WebSphere and WebSphere Portal architects offers a hands-on, best-practice guide to every facet of defining, planning, and implementing WebSphere application architectures. Joey Bernal shows working architects and teams how to define layered architectural standards that can be used across the entire organization, improving application quality without compromising flexibility."--BOOK JACKET.

Anthony (Joey) Bernal is an executive IT specialist with Software Services for Lotus, and a member of the WebSphere Portal Practice. Senior certified with IBM as an IT specialist, he has an extensive background in the design and development of portal and web applications. He is the coauthor of several books, including Programming Portlets 2E; Programming Portlets, the IBM Portal Solutions Guide for Practitioners; and from a previous life, Professional Site Server 3.0. He also contributes to his popular blog, WebSphere Portal in Action.

Mr. Bernal helps to lead the Software Services team in many areas, including application architecture and design, performance, and assisting clients with their cross-brand challenges that leverage WebSphere Portal. By its inherent nature of being a platform to integrate applications at the desktop, WebSphere Portal projects require significant cross-brand expertise. All WebSphere Portal projects have products from multiple brands, and many have products from all five brands in the solution. Specifically, he works to reduce the challenges presented by the cross-brand nature of WebSphere Portal projects, especially in the use of newer technologies such as the integration of WebSphere Portal with services-oriented architectures.

Prior to joining IBM, Mr. Bernal was the director of IT for an incentive and performance improvement company. Mr. Bernal was also the lead technical advisor and architect of multiple high-profile Internet and intranet applications for several Fortune 500 companies.

Foreword	p. xix
Acknowledgments	p. xxi
About the Author	p. xxiii
Preface	p. xxv
Application Architecture	p. 1
What Is Application Architecture?	p. 1
Architects and Architecture	p. 2
Application Architecture and Engineering	p. 7
WebSphere and IBM	p. 8
IBM WebSphere Application Server	p. 9
A Word about Specifications	p. 13
How Close to the Specification Should I Stay with My Architecture?	p. 13
WebSphere Extensions to Consider	p. 14
One Size Does Not Fit All	p. 15
Building Blocks of Application Architecture	p. 16
Detail in Layering	p. 18
A Complete Example	p. 18
Layers Versus Tiers	p. 22
Deployment Patterns for a Layered Architecture	p. 24
Layers Versus Modules	p. 27
A View Perspective on Architecture	p. 30
Conclusion	p. 31
References	p. 31
Setting a Standard	p. 33
Organizational Standards and Conventions	p. 33
Putting the "Engineering" in Software Engineering	p. 34
Standards Documentation	p. 36
Naming Standards and Conventions	p. 36
Packages	p. 37
Classes and Interfaces	p. 37
Functions and Methods	p. 38
Variables and Constants	p. 38
Java Server Pages	p. 38
Internal Documentation	p. 39
Class Header Information	p. 40
Class Methods	p. 41
Getters and Setters	p. 41
Inline Comments	p. 41
Logging and Tracing	p. 42
System.out	p. 43
Using the Logger	p. 43
Logging Levels	p. 45
Method-Level Timers	p. 47
Working with Logging and Tracing	p. 49
Too Much Logging?	p. 50
Why Not Use Aspects?	p. 51
Exception and Error Handling	p. 51
Project and Packaging File Structure	p. 53
Using External Libraries	p. 54
Unit Testing Requirements	p. 55
What Is a Unit?	p. 58
The Trouble with Web Testing	p. 58
Agile Approaches	p. 59
Code Completion and Review Process Requirements	p. 59
Code Reviews	p. 60
You Don't Have to Know Java for a Code Review	p. 62
Communicating the Vision the Wiki Way	p. 62
Conclusion	p. 63
Reference	p. 64
Persistence Matters	p. 65
Types of Persistence Frameworks	p. 65
Object/Relational Mapping	p. 66
SQL-Based Frameworks	p. 66
Why Not Roll Your Own Framework?	p. 66
WebSphere Data Source Resource Reference	p. 67
iBATIS Framework	p. 68
Implementing the Customer Class and Customer SQL Mapping	p. 72
Configurating iBATIS	p. 74
Adding the Spring DAO Framework	p. 76
Running a Test	p. 80
Transactional Thinking	p. 82
EJB 3 and the Java Persistence API	p. 83
Understanding the Approach	p. 84
Entities with POJOs and Annotations	p. 84
Entity Managers	p. 88
Testing the Application	p. 93
Remote Clients	p. 94
Conclusion	p. 97
Designing the Middle Tiers	p. 99
Business Logic	p. 99
Another HelloWorld Example	p. 101
Making the Business Layer Accessible	p. 103
Getting Ready for Unit Testing	p. 105
WebSphere Shared Libraries	p. 107
Making the Library Visible	p. 110
Mapping Shared Libraries to Class Loaders	p. 114
Testing the Business Layer	p. 116
Controlling Shared Libraries	p. 117
Implementation Options	p. 120
Business Process Layers	p. 122
Conclusion	p. 123
References	p. 123
Presentation Frameworks	p. 125
Choosing a Presentation Framework	p. 125
JavaServer Faces	p. 127
Lifecycle Phase Listener	p. 130
About the Sample Application	p. 131
Masking and Conversion Errors	p. 144
JSF as a Standard	p. 146
IBM's JWL	p. 146
Conclusion	p. 147
References	p. 148
Investing in a Portal	p. 149
Incorporating a Portal into Your Architecture	p. 150
Virtual Portal Technology	p. 151
Business-to-Employee (B2E) Portals	p. 152
Business Process or Forms-Based Portal	p. 152
Portals Versus the Web App	p. 1
Table of Contents provided by Publisher. All Rights Reserved.

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Application Architecture for WebSphere A Practical Approach to Building WebSphere Applications

Application Architecture for WebSphere A Practical Approach to Building WebSphere Applications

0137129262

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