Book Image

Digital Java EE 7 Web Application Development

By : Peter Pilgrim
Book Image

Digital Java EE 7 Web Application Development

By: Peter Pilgrim

Overview of this book

Digital Java EE 7 presents you with an opportunity to master writing great enterprise web software using the Java EE 7 platform with the modern approach to digital service standards. You will first learn about the lifecycle and phases of JavaServer Faces, become completely proficient with different validation models and schemes, and then find out exactly how to apply AJAX validations and requests. Next, you will touch base with JSF in order to understand how relevant CDI scopes work. Later, you’ll discover how to add finesse and pizzazz to your digital work in order to improve the design of your e-commerce application. Finally, you will deep dive into AngularJS development in order to keep pace with other popular choices, such as Backbone and Ember JS. By the end of this thorough guide, you’ll have polished your skills on the Digital Java EE 7 platform and be able to creat exiting web application.
Table of Contents (21 chapters)
Digital Java EE 7 Web Application Development
About the Author
About the Reviewers

Handling views

In this chapter, we've chiefly examined the validation of the users' input with JSF. There were some miscellaneous concepts regarding navigation that we glossed over. Let's now talk about handling views and navigation.

Invoking controller methods

There are several ways to invoke the controller from a page view with parameters. For many situations in the digital e-commerce applications, developers need to retrieve a particular data record, trigger a server-side action, or save a certain state from the client-side at the backend.

Parameterized method invocations

JSF allows the developer to pass parameters to methods in the page view using the Expression Language . The first feature given in Chapter 3, Building JSF Forms is called Method Expression Invocation, which was introduced in JSF 2.0.

The following is an extract from the page view /jsf-miscellany/examplar-methods.xhtml:

<h:form id="methodExampler"