2. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 1 CIS 764 Database Systems Design J2EE Patterns Book Review Presented by Mark Weiss CIS 764 Fall 2004 Kansas State University November 11, 2004

3. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 2 Overview Who is Alur et all’s( Book ) intended audience? Book divided into 3 parts + Epilogue - 1 Patterns and J2EE.(Ch.1&2 pp 1-31) - 2 Design Considerations, Bad Practices, and Refactorings. (Ch. 3-5 pp 32-121) - 3 J2EE Patterns Catalog. (Ch. 6-9 pp 122-421) - Epilogue – J2EE Patterns Applied. (Epilogue pp 422-437) Book Positives Book Negatives References CIS 764 Database Systems Design J2EE Patterns Book Review

4. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 3 CIS 764 Database Systems Design J2EE Patterns Book Review Who is the Book’s intended audience? J2EE enthusiasts,programmers, architects,developers, and technical managers. The Book is not: A Java programming guide An answer to which process or methodology to follow in your projects How to use Unified Modeling Language (UML) The Book is: About ‘field discovered’ patterns in J2EE that provide solutions using Sun Java Center (SJC) J2EE Pattern Catalog. Promotes Reuse

5. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 4 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 1 Chapter 1. What are Patterns? Historical References - (Christopher Alexander 1970) Defining a Pattern “Enable us to document a known recurring problem and its solution in a particular context, and to communicate this knowledge to others” Categorizing Patterns Design, Arch., Analysis, Creational, Structural, Behavioral J2EE Pattern Catalog Tiers (Presentation, Business, Integration) Chapter 2. Overview of J2EE Platform.

6. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 5 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 2 Chapters 3-5. Design Considerations, Bad Practices and Refactorings: Chapter 3 Presentation Tier Considerations and Bad Practices. Chapter 4 Business & Integration Tier Considerations and Bad Practices. Chapter 5 Presentation, Business, & Integration Tier Refactorings. Chapter format Problem summary: Quick description of a less than optimal solution. Solution Reference: Patterns that provide information on context and trade-offs Design Considerations Refactorings----A design path using SJC J2EE Pattern Catalog.

7. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 6 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 3 Chapters 6-9. Chapter 6 J2EE patterns overview Tiered Approach

8. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 7 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 3 cont’d Chapter 6 J2EE patterns overview cont’d Tables with Pattern Names and Synopsis of each.(6.1, 6.2, 6.3) Guide to the Catalog Terminology 6.4, UML Stereotypes J2EE Pattern Relationships see next two slides. J2EE Patterns Roadmap “If you are looking for this……Find it here” (Table 6-6)

9. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 8 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 3 cont’d (Presentation Tier ) Top Half Of Figure 6.2

10. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 9 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 3 cont’d (Business & Integ. Tier) Bottom Half Of Figure 6.2

11. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 10 CIS 764 Database Systems Design J2EE Patterns Book Review Book Part 3 cont’d Chapter 7 Presentation Tier Patterns. Chapter 8 Business Tier Patterns. Chapter 9 Integration Tier Patterns. Chapter Format: Context Problem Forces Solution Structure Strategies Consequences Related Patterns

12. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 11 CIS 764 Database Systems Design J2EE Patterns Book Review Book Epilogue

13. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 12 CIS 764 Database Systems Design J2EE Patterns Book Review Book Epilogue cont’d

14. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 13 CIS 764 Database Systems Design J2EE Patterns Book Review Book Epilogue cont’d

15. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 14 CIS 764 Database Systems Design J2EE Patterns Book Review Book Epilogue cont’d

16. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 15 CIS 764 Database Systems Design J2EE Patterns Book Review Book Epilogue cont’d

17. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 16 CIS 764 Database Systems Design J2EE Patterns Book Review Critique: Pros: Easy to read. Examples are somewhat easy to follow with given diagrams and source code. Every pattern has an UML Class and Interaction diagram for clarification. Great reference for Reuse. Cons: Refer it forward. 2 nd Edition June 2003….I read 1 st Edition.

18. CIS764 Fall 2004 http://www.cis.ksu.edu/~mgw9696/cis764/presentation 17 CIS 764 Database Systems Design J2EE Patterns Book Review References: Deepak Alur, John Crupi, Dan Malks. Core J2EE Patterns Best Practices and Design Strategies. New Jersey: Prentice Hall 2001 459pp. Core J2EE Patterns. Available from http://java.sun.com/blueprints/patterns/http://java.sun.com/blueprints/patterns/ Accessed October 27, 2004. Core J2EE Patterns. Available from http://www.corej2eepatterns.com/index.htmhttp://www.corej2eepatterns.com/index.htm Accessed October 28, 2004