facelets

The last parameter, facelets. DEVELOPMENT, is not required, but allows you to use the error-handling facility of Facelets.

If you used Facelets only to define and use templates, you might be a bit disappointed.

Having a tag library is nice, but for it to be useful, you have to tell Facelets that it exists.

Facelets seems to really scratch an itch for the JSF development community.

The steps to install Facelets are easy to follow.

You can use a Facelets TagHandler to inject the logic to decide whether components in the body of a tag are added to the component tree.

In fact, Tapestry was well ahead of its time when it first came out, and Facelets does draw on some of its ideas.

In that it leaves room for some Facelets love and a field composition component to get rid of duplicate code.

Remember that the endgame of a Facelets template is to create a JSF component tree.

Even with some shortcomings, I strongly recommend that you download Facelets and start using it as quickly as possible.

Tags in Facelets because everything is treated as a component in a component tree.

You can use JSF components directly within the Facelets templating language without any additional development.

Facelets knows about the JSF component tree, and its sole purpose in life is to build that component tree.

Another required parameter to use tag libraries with Facelets is the facelets. LIBRARIES parameter.

For Facelets templates to take effect, you need to tell JSF about the Facelets view handler.

These elements perform that task and also effectively replace the normal Facelets entry in faces-config. xml.

This template page uses the insert and the include tags from the Facelets library, associated with the ui namespace.

If your JSF application is a JSF 2 (or a Facelets), place the tag library declaration in the XHTML page, as shown in Listing 2.

I mentioned earlier that I changed this application from one that used strictly servlets and JSPs to MyFaces and Facelets.

You might also want to download the example code for this article and install Facelets (and Tomahawk) before going further.

For starters, I show you a pain-free way to do Internationalization using a Facelets expression language (EL) function.

The SetValueBindingHandler just defines a variable and puts the variable in the Facelets scope so your logic tags can reuse the variable.

Replacing JSP with an alternative viewing technology based on Facelets.

Facelets solves a pet peeve of mine about internationalization: writing a lot of special code for something I may never need.

See a complete listing of Facelets parameters.

If you use a new JSF component library, you have to have a Facelets tag library file that exposes that library.

Facelets is a much more comprehensive solution: a templating language that is geared toward the JSF component model.

Register the facelets-taglib descriptor file.

In the remaining two articles in this series, I will explore Facelets, JSF 2's composite components, and built-in support for Ajax.

JSF 2. 0 simplifies page and component authoring through Facelets, Templating, and Composite Components.

Listing 3 shows another web. xml entry needed for Facelets.

Element that is declared before the tag element above: you ll need it later to use this tag library from another Facelets page.

Facelets obviates the need to write custom tags to use JSF components.

Now it's time to explore how Facelets is used and why it makes things easier in JSF application development.

Facelets (or similar) support is a goal for JSF 2. 0, and the primary Facelets developer is on the JSF Expert Group.

Extract facelets-1. 1. 11. zip to a directory.

To overcome this, you can use the following expression in your Facelets page to prepend the namespace to your javascript code

The steps to create and use a Facelets template are as follows

For debugging, you need to read the Facelets manual, turn on its JDK 1. 4-style logging, and set up its

There are four steps to creating a tag that retrieves a value binding in Facelets