Book Image

Oracle JDeveloper 11gR2 Cookbook

By : Nick Haralabidis
Book Image

Oracle JDeveloper 11gR2 Cookbook

By: Nick Haralabidis

Overview of this book

Oracle's Application Development Framework (ADF) for Fusion Web Applications leverages Java EE best practices and proven design patterns to simplify constructing complex web solutions with JDeveloper, and this hands-on, task-based cookbook enables you to realize those complex, enterprise-scale applications. With the help of real-world implementations, practical recipes cover everything from design and construction, to deployment, testing, debugging and optimization. This practical, task-based cookbook takes you, the ADF developer, on a practical journey for building Fusion Web Applications. By implementing a range of real world use cases, you will gain invaluable and applicable knowledge for utilizing the ADF framework with JDeveloper 11gR2. "Oracle JDeveloper 11gR2 Cookbook"ù is a task-based guide to the complete lifecycle of Fusion Web Application development using Oracle JDeveloper 11gR2 and ADF.You will get quickly up and running with concepts like setting up Application Workspaces and Projects, before delving into specific Business Components such as Entity Objects, View Objects, Application Modules and more. Along the way you will encounter even more practical recipes about ADF Faces UI components and Backing Beans, and the book rounds off by covering security, session timeouts and exceptions.With "Oracle JDeveloper 11gR2 Cookbook"ù in hand you will be equipped with the practical knowledge of a range of ready to use implementation cases which can be applied to your own Fusion Web ADF Applications.
Table of Contents (19 chapters)
Oracle JDeveloper 11gR2 Cookbook
Credits
Foreword
About the Author
About the Reviewers
www.PacktPub.com
Preface

Retrieving the task flow definition programmatically using MetadataService


Task flow definition in JDeveloper is done through the declarative support provided by the IDE. This includes defining the task flow activities and their relevant control flow cases by dragging-and-dropping task flow components from the Component Palette to the Diagram tab and adjusting their properties through the Property Inspector, defining managed beans in the Overview tab, and so on. JDeveloper saves the task flow definition metadata in an XML document, which is accessible in JDeveloper anytime you click on the Source tab. The task flow definition metadata is available programmatically at runtime through the oracle.adf.controller.metadata.MetadataService object by calling getTaskFlowDefinition(). This API is public since the release of JDeveloper version 11.1.2.

In this recipe, we will show how to get the task flow definition metadata by implementing the following use case. For each task flow in our ADF application...