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

Overriding remove() to delete associated children entities


When deleting a parent entity, there are times you will want to delete all of the child entity rows in an entity assocation relation. In this recipe, we will see how to accomplish this task.

Getting ready

You will need access to the HR database schema.

How to do it...

  1. 1. Start by creating a new Fusion Web Application (ADF) workspace called HRComponents.

  2. 2. Create a Database Connection for the HR schema in the Application Resource section of the Application Navigator.

  3. 3. Use the Business Components from Tables selection on the New Gallery dialog to create business components objects for the DEPARTMENTS and EMPLOYEES tables. The components in the Application Navigator should look similar to the following:

  4. 4. Double-click on the EmpDeptFkAssoc association on the Application Navigator to open the association definition, then click on the Relationship tab.

  5. 5. Click on the Edit accessors button (the pen icon) in the Accessors section to...