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Oracle JDeveloper 11gR2 Cookbook

You're reading from   Oracle JDeveloper 11gR2 Cookbook Using JDeveloper to build ADF applications is a lot more straightforward when you learn through practical recipes. This book has over 85 of them to take you beyond the basics and raise your knowledge to a new level.

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Product type Paperback
Published in Jan 2012
Publisher Packt
ISBN-13 9781849684767
Length 406 pages
Edition 1st Edition
Languages
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Author (1):
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Nick Haralabidis Nick Haralabidis
Author Profile Icon Nick Haralabidis
Nick Haralabidis
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Table of Contents (19) Chapters Close

Oracle JDeveloper 11gR2 Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
1. Preface
1. Prerequisites to Success: ADF Project Setup and Foundations FREE CHAPTER 2. Dealing with Basics: Entity Objects 3. A Different Point of View: View Object Techniques 4. Important Contributors: List of Values, Bind Variables, View Criteria 5. Putting them all together: Application Modules 6. Go with the Flow: Task Flows 7. Face Value: ADF Faces, JSF Pages, and User Interface Components 8. Backing not Baking: Bean Recipes 9. Handling Security, Session Timeouts, Exceptions, and Errors 10. Deploying ADF Applications 11. Refactoring, Debugging, Profiling, and Testing 12. Optimizing, Fine-tuning, and Monitoring

Using Update Batching for entity objects


When multiple entity objects of the same type are modified, the number of DML (INSERT, UPDATE, and DELETE) statements that are issued against the database corresponds to one for each entity object that was modified. This can be optimized by using entity object update batching optimization. When update batching is used, the DML statements are grouped per DML statement type (INSERT, UPDATE, and DELETE) and bulk-posted based on a configured threshold value. This threshold value indicates the number of entity objects of the same type that would have to be modified before update batching can be triggered.

In this recipe, we will see how to enable update batching for an entity object.

Getting ready

We will enable update batching for the Department entity object. This entity object is part of the HRComponents workspace, which was created in Overriding remove() to delete associated children entities, Chapter 2,Dealing with Basics:Entity Objects.

The HRComponents...

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