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  • Book Overview & Buying Oracle ADF Real World Developer's Guide
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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
1
Index

Customizing default business component error messages


ADF business components allow you to customize default business component error messages, such as unique constraint violation or foreign key constraint violation, by providing an alternative message string for the error code in a custom message bundle.

The following example will help you to understand the steps for customizing the message bundle used by business components. In this example, we will override the default error message displayed for the violation of the unique constraint 'EMP_EMAIL_UK' defined on the Email field in the Employee table. By default, when you commit a transaction with a duplicate Email field, the error message thrown by the application is as follows:

"ORA-00001: unique constraint (HR.EMP_EMAIL_UK) violated"

This does not make any sense to an end user and he or she cannot judge anything from this error. Let us see how to convert this error in to more user friendly message:

"Email is in use"

Step1: Creating and...

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