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

Adding validation rules in a fusion web application


A typical enterprise application may want to perform certain validations at client-side and certain things at server-side. The idea is to detect and report the errors as soon as possible to the end user. Oracle ADF allows you to perform validations on both client- and server-side. For a fusion web application, client-side validation is performed in the browser itself without performing a server round trip. Client-side validation is typically used to validate the basic syntax and semantics of the user input. More business critical validations, which involve pulling data from database or interaction with third party services, are performed on the server. This is done when the user submits a page.

For an ADF web application, you can enable validations at three different layers as follows:

  • ADF view (ADF Faces)

  • ADF model

  • ADF Business Components

The validations added in different layers are triggered at different stages in a page life cycle. When...