Primefaces Cookbook Second Edition

Partial process and update with fragments

For enhanced AJAX capabilities, PrimeFaces offers the <p:fragment> component, which offers partial processing and updating with the AJAX request triggered by a component that resides inside the fragment itself. This component is useful and easy to use when multiple sections exist for a form with a different action for each section since there'll be no need to specify ID's for component processing and updating.

How to do it…

Let's define two fragments to retrieve data for registering a user into a system, one for user name input and the other for user address input. The definition of these two fragments would be as follows with the respective input fields marked with the required attribute:

<p:fragment autoUpdate="true"> ...