Tag Libraries Tutorial (v. 1.0)

Contents

Preface

What is a Tag Library?

Using Tags

Declaring Tag Libraries

Types of Tags

Simple Tags

Tags With Attributes

Tags With a Body

Choosing Between Passing Information as Attributes or Body

Tags That Define Scripting Variables

Cooperating Tags

Defining Tags

Tag Handlers

Tag Library Descriptors

Simple Tags

Tag Handlers

TLD bodycontent Element

Tags With Attributes

Defining Attributes in a Tag Handler

TLD attribute Element

Attribute Validation

Tags With a Body

Tag Handlers

TLD bodycontent Element

Tags That Define Scripting Variables

Tag Handlers

TLD teiclass Element

Cooperating Tags

Examples

An Iteration Tag

JSP Page

Tag Handler

Tag Extra Info Class

A Template Mechanism

JSP Page

Tag Handlers

Web Application Deployment Descriptor

How Is a Tag Handler Invoked?