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 data tables


The<tr:table> component is a powerful component for rendering data tables. Let’s explore its possibilities by building a page similar to the one that we built in the previous chapter. The basic table definition we’re starting out with is very similar to the first table definition that we used in our Tomahawk example in the previous chapter:

<tr:table var="kid" value="#{kidsList.kids}"
rows="20" id="kids">

There are some important differences that are not visible in this simple definition, though. These are as follows:

  • Although, in our example, the #{kidsList.kids} still evaluates to a simple java.util.List, we could have used an object of type org.apache.myfaces.trinidad.model.CollectionModel instead. In fact, Trinidad will automatically convert our simple List to a CollectionModel anyway.

  • By setting rows to 20, Trinidad will not only limit the number of rows in the table to 20, but will also automatically add controls for navigating through the data set, should...