Book Image

PrimeFaces Beginner's Guide

By : Siva Prasad Reddy Katamreddy
Book Image

PrimeFaces Beginner's Guide

By: Siva Prasad Reddy Katamreddy

Overview of this book

PrimeFaces is a lightweight UI component framework for JSF based applications. PrimeFaces is very easy to use because it comes as a single JAR file and requires no mandatory XML configuration. It provides more than 100 UI Components and an in-built AJAX support. It also provides theme support for UI components with more than 30 themes out-of-the-box. With PrimeFaces, developers can create rich user interfaces very easily.PrimeFaces Beginners Guide is a practical, hands-on guide that provides you with clear step-by-step exercises,that will help you to learn and explore the features of PrimeFaces.PrimeFaces Beginners Guide starts by showing you how to install PrimeFaces, create sample forms, and perform validations and then looks at various commonly used PrimeFaces utility components. Next, you will look into various basic text input components like form controls, Calendar, AutoComplete, and Rich Text Editor. Then you will learn about advanced UI components such as DataTables, panels, menus,and charts. Throughout the chapters we will be building a sample web application using PrimeFaces progressively that will give you a hands-on experience on using PrimeFaces effectively.You will learn how to create complex layouts using accordion panels, tab views, sophisticated menu navigations, breadcrumbs and much more. You will also learn how to display data using DataTable with pagination, filters, and lazy loading, and how to export data to Excel or PDF features. You will learn how to represent data in various formats like trees, charts, and TagCloud. You will also learn how to build an application supporting multiple themes.With this PrimeFaces Beginner's Guide , you will learn how to use PrimeFaces easily and effectively.
Table of Contents (20 chapters)
PrimeFaces Beginner's Guide
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
3
Using PrimeFaces Common Utility Components
Index

Performing form validations


Validating user submitted data is very common and a crucial part of any web application. JSF itself provides support for UI component validation and PrimeFaces enhances it with additional features.

In the previous section, we have created a sample user registration form but we did not validate the form for any mandatory fields. Let us enhance the registration form with the validations for mandatory fields.

Assume we have the following validation rules for the registration form:

  • UserName should not be blank.

  • Password should not be blank and should be at least four characters.

  • FirstName should not be blank.