Apache Wicket Cookbook

Apache Wicket Cookbook

By : Igor Vaynberg

Buy this Book

Apache Wicket Cookbook

By: Igor Vaynberg

Buy this Book

Overview of this book

Apache Wicket is one of the most famous Java web application frameworks. Wicket simplifies web development and makes it fun. Are you bored of going through countless pages of theory to find out how to get your web development done? With this book in hand, you don't need to go through hundreds of pages to figure out how you will actually build a web application. You will get practical solutions to your common everyday development tasks to pace up your development activities. Apache Wicket Cookbook provides you with information that gets your problems solved quickly without beating around the bush. This book is perfect for you if you are ready to take the next step from tutorials and step into the practical world. It will take you beyond the basics of using Apache Wicket and show you how to leverage Wicket's advanced features to create simpler and more maintainable solutions to what at first may seem complex problems. You will learn how to integrate with client-side technologies such as JavaScript libraries or Flash components, which will help you to build your application faster. You will discover how to use Wicket paradigms to factor out commonly used code into custom Components, which will reduce the maintenance cost of your application, and how to leverage the existing Wicket Components to make your own code simpler.

Apache Wicket Cookbook

Credits

About the Author

About the Reviewers

www.PacktPub.com

Preface

Free Chapter

Validating and Converting User Input

Introduction

Performing form-level custom validation

Creating a custom validator

Composing multiple validators into a single reusable validator

Converting string inputs to objects

Getting Down and Dirty with Forms and Form Components

Introduction

Creating linked selectboxes

Composing multiple form components into a single reusable component

Preventing multiple form submits

Protecting against spam with a CAPTCHA

Making Forms Presentable

Introduction

Changing form component CSS class on validation errors

Using FeedbackPanel to output form component specific messages

Streamlining form component presentation using behaviors

Taking your Application Abroad

Introduction

Storing module resource strings in package properties

Retrieving a localized string

Feeding dynamic localized strings to components using StringResourceModel

Using wicket:message to output localized markup

Overriding localized resources on a case by case basis

Displaying Data Using DataTable

Introduction

Sorting

Filtering

Making cells clickable

Making rows selectable with checkboxes

Exporting data to CSV

Enhancing your UI with Tabs and Borders

Introduction

Creating tabs with dynamic titles

Making a tabbed panel play nice with forms

Creating a client-side JavaScript tabbed panel

Using borders to decorate components

Creating a collapsible border

Deeper into Ajax

Introduction

Adding Ajax validation to individual form components

Blocking until an Ajax request is complete

Providing Ajax feedback automatically

Visualizing Data with Charts

Introduction

Charting with Open Flash Chart

Feeding chart data using a SharedResource

Responding to clicks

Building Dynamic and Rich UI

Introduction

Swapping components using a select box

Creating dynamic forms

Creating a dynamic portal layout

Securing your Application

Introduction

Creating a login page and forcing the user to log in

Authenticating with OpenID

Securing components using IAuthorizationStrategy

Securing URLs and protecting against cross-site request forgery

Switching from HTTP to HTTPS and back again

Integrating Wicket with Middleware

Introduction

Integrating with Spring

Integrating with CDI

Populating repeaters from a JPA query

Creating a model for a JPA entity

Index

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Introduction

It is hard to find a web application that does not have a single table that presents the user with some data. Building these DataTables, although not very difficult, can be a daunting task because each of these tables must often support paging, sorting, filtering, and so on. Wicket ships with a very powerful component called the DataTable that makes implementing all these features simple and elegant. Because Wicket is component-oriented, once implemented, these features can be easily reused across multiple DataTable deployments. In this chapter, we will see how to implement the features mentioned previously using the DataTable and the infrastructure it provides.

Apache Wicket Cookbook

By : Igor Vaynberg

Apache Wicket Cookbook

By: Igor Vaynberg

Overview of this book

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Apache Wicket Cookbook

Introduction