Book Image

Effortless App Development with Oracle Visual Builder

By : Ankur Jain
Book Image

Effortless App Development with Oracle Visual Builder

By: Ankur Jain

Overview of this book

Organizations are moving their applications, data, and processes to the cloud to reduce application costs, effort, and maintenance. However, adopting new technology poses challenges for developers, solutions architects, and designers due to a lack of knowledge and appropriate practical training resources. This book helps you get to grips with Oracle Visual Builder (VB) and enables you to quickly develop web and mobile applications and deploy them to production without hassle. This book will provide you with a solid understanding of VB so that you can adopt it at a faster pace and start building applications right away. After working with real-time examples to learn about VB, you'll discover how to design, develop, and deploy web and mobile applications quickly. You'll cover all the VB components in-depth, including web and mobile application development, business objects, and service connections. In order to use all these components, you'll also explore best practices, security, and recommendations, which are well explained within the chapters. Finally, this book will help you gain the knowledge you need to enhance the performance of an application before deploying it to production. By the end of this book, you will be able to work independently and deploy your VB applications efficiently and with confidence.
Table of Contents (23 chapters)
1
Section 1: Exploring the Building Blocks of VB
5
Section 2: Working with Data and Services
10
Section 3: Building Web and Mobile Apps Using Various VB Components
15
Section 4: Security, Recommendations, Best Practices, and Troubleshooting

Chapter 7: Working with Life Cycle Events, Validations, and UI Logic

In this chapter, we'll work with the life cycle events of our page, which will help you to execute your custom code before or while exiting the page. Life cycle events are very important to understand as they help you to perform cleanup and other important tasks before a user enters or exits a page. For example, you can redirect a user to the login page if a user is trying to access a secured page or you want to abort the user session before the user leaves a secured page. We'll execute an example where you will see how to use a life cycle event to load data before a page loads.

We'll show you how to populate the data from relational Business Objects in two separate tables and how to populate child data based on the selection of a parent row. You will learn how to validate a web form on the client side.

We'll show you how to implement various logic related to UI components, such as hiding...