This document discusses several ADF anti-patterns and dangerous tutorials including slow queries, large fetches, Groovy misuse, and passivation/activation issues. It provides demonstrations of how to track and fix each problem, such as minimizing database query execution time, limiting row fetches, and properly using bind variables. The document also profiles Red Samurai Consulting, an Oracle ADF and Fusion focused company that helps customers address these anti-patterns.

1. ADF Anti-Patterns:
Dangerous Tutorials
Andrejus Baranovskis
CEO & Architect, Red Samurai Consulting
Oracle ACE Director
Florin Marcus
Hands-on Consultant, Red Samurai Consulting

2. 
ADF, SOA , BPM, ADF
Mobile, WebCenter and UCM

Oracle Fusion Middleware
Innovation Award 2010

Small Team of
Experts, Focused on
Technical Quality Results

SOA Partner Community
Award for Outstanding
Contribution Across the
World 2010

Customers – Global
Corporations, Medium and
Small Business

2010 Enterprise 2.0 Blazer:
Enterprise 2.0 Leader Award

Oracle Technical Blog – 8
Years (~600 posts)

3. 

ADF Anti-Patterns: Dangerous
Tutorials
Slow Query

Outline
ADF Learning Approach
Large Fetch

Groovy Misuse

Passivation/Activation

ADF Query Misuse

4. ADF Learning Approach
http://jeetworks.org/grokking-the-zen-of-the-vi-wu-wei

5. ADF Learning Approach

Exciting technology and easy start

First task – too many ways to follow, almost lost

List of favorite tricks and best practices

Understanding ADF logic behind JDeveloper Wizards Magic

6. Slow Query
http://talks.chastell.net/src-2011/file/performance/slow-user.jpg

7. Slow Query

Fast DB Query can be Slow in ADF

Lack of DB indexes

Batches Of Tuning in ADF BC

Demo – How to track Query execution time in ADF BC

8. Slow Query – Batches Of Tuning

9. Slow Query – Batches Of Tuning

10. Slow Query – Track Time

11. Large Fetch
http://irmgardebrown.com/2011/05/23/produce-useful-crops/

12. Large Fetch

Last Button

Table Scroll

LOV Range Size

Demo – How to track Large Fetch issues, fix them

13. Large Fetch – Row Logging

14. Large Fetch – Table Scrolling

15. Large Fetch – LOV Range Size

16. Groovy Misuse
http://keepsake2sweet.wordpress.com/backgrounds/groovy-colors/

17. Groovy Misuse

Calling DB logic from Java method in Groovy

Groovy sum/average behind the scenes

Demo – How to track what is executing in the background

18. Groovy Misuse – SQL Calls

19. Groovy Misuse – Attribute Calls

20. Passivation/Activation
http://www.amusingtime.com/images/07/funny-dog-levitation-powers-activate.jpg

21. Passivation/Activation

Tuning recommendations to minimize activation/passivation

ContentDelivery = whenAvailable and Passivation

What happens behind the scenes during Activation

Danger of WebLogic Stuck Thread

Demo – large fetch during Activation, Primary Key Importance

22. Passivation/Activation – AM Tuning

Referenced Pool Size is
important to minimize
passivation

Maximum Available Size

Possibly – Idle Instance
Timeout

23. Passivation/Activation – Content Delivery

24. Passivation/Activation – Order By Large Fetch

25. ADF Query Misuse
http://sem-group.net/search-engine-optimization-blog/6-google-search-query-tips/

26. ADF Query Misuse

ADF Query features to disable DB indexing

Demo – important hints to keep your ADF Query Search fast

27. ADF Query Misuse – Wrong Bind Variable Usage

28. Red Samurai Profile
Customer Base
Focus

United States

Canada

Germany

Czech Republic

South Africa

Norway

Greece

Advanced Oracle
ADF and Fusion
Coaching
Switzerland




United Kingdom

Spain

Portugal


Australia

Jordan

Saudi Arabia
Oracle ADF and
Fusion Architecture
Development
Oracle ADF and
Fusion
Development and
Implementation
ADF Mobile
Development

29. Contacts
Andrejus Baranovskis

Blog: http://andrejusb.blogpost.com

Web: http://redsamuraiconsulting.com

Email: abaranovskis@redsamuraiconsulting.com

Facebook: http://www.facebook.com/redsamoracle

Phone: +370-640-14737