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

Parameterizing a bounded task flow


You can make a bounded task flow more generic and reusable by adding input parameters and return values.

Defining a task flow input parameter

To specify input parameters perform the following steps:

  1. Open the task flow in the overview editor, select the Parameters tab and click on the green plus icon in the Input Parameter Definition section to add parameters.

  2. Enter the Name for the parameter, Java Class type, Value, and the Required flag. The parameter value is specified using an EL expression. Note that an EL expression used as a parameter value is just a pointer to a memory scoped variable or managed bean property for storing the parameter's value passed by the caller. The task flow can use the EL expression set for a parameter to refer the parameter value at runtime.

Note that you can also use Property Inspector for a task flow to add parameters. The steps for defining parameters remain the same as we previously discussed.

Specifying input parameter values...