Book Image

Apache MyFaces 1.2 Web Application Development

Book Image

Apache MyFaces 1.2 Web Application Development

Overview of this book

Hypes and trends (such as Web 2.0) cause a change in the requirements for user interfaces every now and then. While a lot of frameworks are capable of meeting those changing requirements, it often means you as a developer need in-depth knowledge of web standards, such as XHTML and JavaScript. A framework like Apache MyFaces that hides all details of how the page is rendered at the client and at the same time offers a rich set of tools and building blocks could save you a lot of time, not only when you're building a brand new application but also when you're adapting an existing application to meet new user interface requirements.This book will teach you everything you need to know to build appealing web interfaces with Apache MyFaces and maintain your code in a pragmatic way. It describes all the steps that are involved in building a user interface with Apache MyFaces. This includes building templates and composition components with Facelets, using all sorts of specialized components from the Tomahawk, Trinidad, and Tobago component sets and adding validation with MyFaces Extensions Validator.The book uses a step-by-step approach and contains a lot of tips based on experience of the MyFaces libraries in real-world projects. Throughout the book an example scenario is used to work towards a fully functional application when the book is finished.This step-by-step guide will help you to build a fully functional and powerful application.
Table of Contents (22 chapters)
Apache MyFaces 1.2
Credits
About the Author
Acknowledgement
About the Reviewers
Preface
Trinidad Tags
Trinidad Text Keys
Default JSF Error Messages
ExtVal Default Error Messages

Creating input and edit forms


Trinidad has an extensive list of input components that can be used on input and edit forms. The Trinidad input components have a lot in common. Therefore, we’ll first have a look at the common features that all Trinidad input components share. After that, we will cover the specific features of the individual input components.

Exploring the common features of input components

The Trinidad input components have a lot of extra features when compared to the standard JSF components. One of the most notable differences is the all-in-one approach that all of Trinidad’s input components have in common. This means that a single input component can be used to render the component itself, as well as the associated label, an associated error message component, and an indicator for required fields. To nicely align these "embedded" components, a<tr:panelFormLayout> component can be used. This is discussed in the Creating layouts for our pages section at the end of...