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Oracle ADF Real World Developer's Guide

Oracle ADF Real World Developer's Guide

By : Jobinesh Purushothaman
4.5 (12)
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Oracle ADF Real World Developer's Guide

Oracle ADF Real World Developer's Guide

4.5 (12)
By: Jobinesh Purushothaman

Overview of this book

Oracle ADF in combination with JDeveloper IDE offers visual and declarative approaches to enterprise application development. This book will teach you to build scalable rich enterprise applications using the ADF Framework, with the help of many real world examples. Oracle ADF is a powerful application framework for building next generation enterprise applications. The book is a practical guide for the ADF framework and discusses how to use Oracle ADF for building rich enterprise applications. "Oracle ADF Real World Developer's Guide" discusses ADF framework in detail. This book contains a lot of real life examples which will help developers to design and develop successful enterprise applications. This book starts off by introducing the development environment and JDeveloper design time features. As you read forward, you will learn to build a full stack enterprise application using ADF. You will learn how to build business services using ADF, enable validation for the data model, declaratively build user interfaces for business service and enable security across application layers.
Table of Contents (20 chapters)
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Oracle ADF Real World Developer's Guide
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Refreshing an ADF region


While displaying a task flow using a region, the framework generates a separate view port for the region and tracks all the user actions inside the region separately from the parent page. All regions are initially refreshed during the first display of the containing page. What if you want to refresh the task flow bindings in response to some user actions outside of the region?

The ADF binding layer provides both declarative and programmatic solutions for such use cases. The following are the details:

  • Refreshing the task flow conditionally: To refresh (restart) a task flow based on business conditions, you can specify RefreshCondition = #{EL expression} for the taskFlow executable binding. When you set RefreshCondition, the corresponding region will be refreshed (the task flow will be restarted) whenever an EL expression evaluates to true during the page lifecycle.

    Note RefreshCondition should only evaluate to true when you want the task flow to refresh or restart...

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