# How This VDL Document Is Organized

This VDL (View Declaration Language) document has pages corresponding to the items in the navigation bar, described as follows.

- ## Overview

  The Overview page is the front page of this VDL documentation and provides a list of all tag libraries with a summary for each.

- ## Library

  Each tag library has a page that contains a list of its tags and functions, with a summary for each. This page can contain two categories:

  - Tags
  - Functions

- ## Tags

  A tag library can have zero or more tags. Each tag has its own page that describes the tag and depending on the tag type, information about the UI component, behaviour, converter and/or validator, along with all attributes in detail.

- ## Functions

  A tag library can contain zero or more EL functions. If a tag library has at least one function, a page is generated that lists all functions, the class that implements the function, the function signature, and an optional example use of the function.

- ## Frames/No Frames

  These links show and hide the HTML frames. All pages are available with or without frames.

Output generated by Vdldoc View Declaration Language Documentation Generator.