Book Image

Oracle ADF 11gR2 Development Beginner's Guide

By : Vinod Thatheri Krishnan
Book Image

Oracle ADF 11gR2 Development Beginner's Guide

By: Vinod Thatheri Krishnan

Overview of this book

Oracle ADF is an end-to-end framework which makes application development simple by providing infrastructure services as well as visual and declarative development right away. "Oracle ADF 11gR2 Development Beginner's Guide" guides any user with programming skills to be able to quickly learn the options and ways to develop rich Internet applications using ADF 11gR2. Containing all the skills that a new user has to use to build an application in ADF 11gR2, this book is designed in such a way so that it enhances the practical feel of developing applications in ADF 11gR2. Starting with the installation and configuration of Oracle ADF 11g RD we will then work through topics such as working with the Model Layer and Model Data followed by displaying and binding the data. Later we will look at Navigations and Flows within applications as well as their layout, look, and feel. "Oracle ADF 11g R2 Development Beginner's Guide" will conclude with us looking at the security and deployment of the applications which have been created.
Table of Contents (19 chapters)
Oracle ADF 11gR2 Development Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Pop Quiz Answers
Index

Time for action – learning to override a method


The following steps will show how to override a method from the class and then write our own logic in the method. We will have EmpDirectoryModuleImpl as our example here:

  1. Right-click on the EmpDirectoryModuleImpl class and select the Source option.

  2. Click on the Override Methods… option to override the operations from the base class.

  3. Type in the method name, for example befo, in the search box that will fetch methods starting with that literal.

  4. Check the beforeCommit() operation and click on OK.

  5. Add the following code:

    ViewObject vo = findViewObject("EmpVO3");
    vo.clearCache();
    vo.executeQuery();
  6. This code has to be added before the super.beforeCommit(transactionEvent) code statement.

What just happened?

Before committing the transaction:

  • We are providing a handle to the EMPVO3 view object, which is the view instance of the child view object for DeptVO1

  • The second line clears the cache for the view object and the last line will execute the query.

Have...