Mastering JavaServer Faces 2.2

Overriding JSF renders

The main responsibilities of a Renderer consists of generating the appropriate client-side markup, such as HTML, WML, and XUL, and converting information coming from the client to the proper type for the component.

JSF provides a set of built-in renders and has the capability to extend them with custom behavior. If you consider a proper workaround to override a built-in render, then perform the following steps:

1. Extend the desired built-in renderer (for example, Renderer, TextRenderer, LabelRenderer, MessagesRenderer, and so on).
2. Override the built-in renderer methods.
3. Configure the new renderer in faces-config.xml or using the @FacesRenderer annotation.

Well, let's see some examples of writing a custom render. For example, let's ...