taglib prefix=”ui” uri=”” %> added to Facelets to get around some of the optimizations used in handling text within your document. JSF provides special tags to create common layout for a web application called facelets tags. These tags provide flexibility to manage common parts of multiple. It’s included in the “binary bundle” downloads at Mojarra download page (note: not just “binary”). Here’s a direct link: Mojarra binary bundle. This contains.
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In computingFacelets is an open-source Web template system under the Apache license and the default view handler technology aka view declaration language for JavaServer Faces JSF.
The language requires valid input XML documents to work. Facelets draws on some of the ideas from Apache Tapestry  and is similar enough to draw comparison.
The project is conceptually similar to Tapestry’s, which treats blocks of HTML elements as faccelets components backed by Java classes. Facelets also has some similarities to the Apache Tiles framework with respect to support templating as well as composition.
Facelets was originally created by Jacob Hookom in  as a separate, alternative view declaration language for JSF 1.
Starting from JSF 2. JSP has been deprecated as a legacy fall back.
In Facelets, templates tags from a tag library can be entered in two forms: In the latter case the Facelet compiler will ignore the actual element and will process the element as-if it was the one given by the jsfc attribute. Using the jsfc attribute, the same code can also be expressed as the example given below:.
This is not possible when directly using the qualified tags. Nevertheless, directly using qualified tags is the most popular way of using Facelets in practice  and is the style most used in books and examples.
Facelets provides a facility for templating. The file that references such a template is called the template client.
JSF – Facelets Tags
Template clients themselves can again be used as a template for other template clients and as such a hierarchy of templates can be created.
A template client can use this template as follows:. In addition to templating, Facelets provides support for re-use by letting the user include content that resides in a different file. Including such content can be done in three different ways:. Besides re-using content at multiple locations, this can be used to break down a large Facelet into smaller parts.
Facelets supports indirection for including content via custom tags. Occurrences of that tag will then be replaced with the content of the associated Facelet. Such a tag has to be declared in a Taglib file where it can be associated with a Facelet as follows:.
JSF Facelet View – Portlet Bridge – Project Documentation Editor
Besides including content directly, Facelets provides the composite component mechanism that makes content available as a first-class JSF component. By convention the content is then automatically assigned a namespace and a tag name. The namespace is constructed of the fixed string ‘ http: The above Facelet is automatically available as a component in namespace ‘http: To customize included content, Facelets allows parameters to be used.
Via those parameters, objects can be passed into the included content, where they can be used as variables. Composite components require parameters to be declared in their interface section,  while for custom tags there is no such requirement and values provided for arbitrary attributes are made available as variables with the same name as said attribute.
From Wikipedia, the free encyclopedia.
JSF Facelets Tags
Open-source Web template system. Free and open-source software portal Java programming language portal. Archived from the original on 6 July Retrieved 22 November Archived from the original on 13 January New features introduced in version 2 and later are only exposed to page authors using Faceelts.
JSP is retained for backwards compatibility. Templating and composite components”.