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

Introducing the RequestContext utility


RequestContext is a utility class provided by PrimeFaces with the following features, which come in handy at times:

  • Update UI components from Managed Bean methods programmatically

  • Execute JavaScript from Managed Bean methods

  • Add AJAX callback parameters

  • ScrollTo a specific component after the AJAX update

The RequestContext utility class can be used with both AJAX and Non-AJAX requests. We can also use the requestContext.isAjaxRequest() method to determine whether the current request is an AJAX or Non-AJAX request.

Updating UI components

Normally we use the update attribute to specify the component ID(s) that needs to be updated after an AJAX request is completed.

We can also update the components using the org.primefaces.context.RequestContext utility function.