Book Image

Oracle ADF Real World Developer's Guide

By : Jobinesh Purushothaman
Book Image

Oracle ADF Real World Developer's Guide

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)
Oracle ADF Real World Developer's Guide
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface
Index

Using a contextual event for communicating to an ADF region


A Fusion web page can have multiple task flows added as region components. The task flows added in regions works independent to each other and with limited interactions with the parent page. What if you want a region to respond to some user actions in the parent page? How do you establish a channel for passing messages or data from the containing page to the task flow activity displayed in the view port of a region component?

Oracle ADF provides a Contextual Events framework for handling such scenarios. The contextual event enables communication between the following items:

  • Parent page to region (and vice versa)

  • Region to region

Contextual event model

Contextual event model is based on a publisher subscriber pattern. The event framework allows you to define custom event types and wire them with standard UI events through the binding container. Whenever a UI event is raised, the framework will trigger the associated contextual event as...