ADF Anti-Patterns: Dangerous Tutorials

Andrejus BaranovskisCEO & Architect, Red Samurai ConsultingOracle ACE Director

Florin MarcusHands-on Consultant, Red Samurai Consulting

ADF, SOA , BPM, ADF Mobile, WebCenter and UCM

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Outline

ADF Learning Approach

Slow Query

Large Fetch

Groovy Misuse

Passivation/Activation

ADF Query Misuse

ADF Anti-Patterns: Dangerous Tutorials

ADF Learning Approach

http://jeetworks.org/grokking-the-zen-of-the-vi-wu-wei

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

Slow Query

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

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

Slow Query – Batches Of Tuning

Slow Query – Batches Of Tuning

Slow Query – Track Time

Large Fetch

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

Large Fetch

Last Button

Table Scroll

LOV Range Size

Demo – How to track Large Fetch issues, fix them

Large Fetch – Row Logging

Large Fetch – Table Scrolling

Large Fetch – LOV Range Size

Groovy Misuse

http://keepsake2sweet.wordpress.com/backgrounds/groovy-colors/

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

Groovy Misuse – SQL Calls

Groovy Misuse – Attribute Calls

Passivation/Activation

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

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

Passivation/Activation – AM Tuning

Referenced Pool Size is important to minimize passivation

Maximum Available Size

Possibly – Idle Instance Timeout

Passivation/Activation – Content Delivery

Passivation/Activation – Order By Large Fetch

ADF Query Misuse

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

ADF Query Misuse

ADF Query features to disable DB indexing

Demo – important hints to keep your ADF Query Search fast

ADF Query Misuse – Wrong Bind Variable Usage

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Focus

Advanced Oracle ADF and Fusion Coaching

Oracle ADF and Fusion Architecture Development

Oracle ADF and Fusion Development and Implementation

ADF Mobile Development

Contacts

Andrejus BaranovskisBlog: http://andrejusb.blogpost.comWeb: http://redsamuraiconsulting.comEmail: abaranovskis@redsamuraiconsulting.comFacebook: http://www.facebook.com/redsamoracle Phone: +370-640-14737