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  • Book Overview & Buying Vaadin 7 UI Design By Example: Beginner's Guide
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Vaadin 7 UI Design By Example: Beginner's Guide

Vaadin 7 UI Design By Example: Beginner's Guide

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Vaadin 7 UI Design By Example: Beginner's Guide

Vaadin 7 UI Design By Example: Beginner's Guide

4.5 (11)
Buy this Book

Overview of this book

Vaadin is a mature, open-source, and powerful Java framework used to build modern web applications in plain Java. Vaadin brings back the fun of programming UI interfaces to the web universe. No HTML, no CSS, no JavaScript, no XML. Vaadin lets you implement web user interfaces using an object oriented model, similar to desktop technologies such as Swing and AWT. Vaadin 7 UI Design By Example: Beginner's Guide is an engaging guide that will teach you how to develop web applications in minutes. With this book, you will Develop useful applications and learn basics of Java web development. By the end of the book you will be able to build Java web applications that look fantastic. The book begins with simple examples using the most common Vaadin UI components and quickly move towards more complex applications as components are introduced chapter-by-chapter. Vaadin 7 UI Design By Example: Beginner's Guide shows you how to use Eclipse, Netbeans, and Maven to create Vaadin projects. It then demonstrates how to use labels, text fields, buttons, and other input components. Once you get a grasp of the basic usage of Vaadin, the book explains Vaadin theory to prepare you for the rest of the trip that will enhance your knowledge of Vaadin UI components and customization techniques.
Table of Contents (17 chapters)
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Vaadin 7 UI Design By Example Beginner's Guide
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Vaadin 7 UI Design By Example Beginner's Guide
Credits
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Credits
About the Author
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About the Author
Acknowledgement
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Acknowledgement
About the Reviewers
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About the Reviewers
www.PacktPub.com
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www.PacktPub.com
Preface
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Preface
Lock Free Chapter
1
Writing Your First Vaadin-powered Application
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Writing Your First Vaadin-powered Application
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Creating and running Vaadin applications in Eclipse
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Time for action – downloading and installing Eclipse
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Time for action – installing the plugin
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Time for action – installing Jetty
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Time for action – creating a new Vaadin project
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Time for action – deploying and running
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Creating and running Vaadin applications in NetBeans
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Time for action – downloading and installing NetBeans
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Time for action – creating a new Vaadin project
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Time for action – deploying and testing
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Creating and running Vaadin applications using Maven
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Time for action – creating a new Vaadin project
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Time for action – deploying and running
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Generated application explained
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A more interesting "hello world" application
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Time for action – using text fields
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Summary
2
Using Input Components and Forms – Time to Listen to Users
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Using Input Components and Forms – Time to Listen to Users
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The Time It application
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Time for action – separating business classes from UI classes
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Time for action – adding components as class members
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Time for action – adding some infrastructure
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Time for action – adding a combobox
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Time for action – validating user input
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Time for action – adding input component into the layout
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Time for action – running the test set
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Time for action – showing the results
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Thinking in Vaadin
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Time for action – binding data to properties
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More input components
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Time for action – fixing the OptionGroup example
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Time for action – using an InlineDateField component
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Summary
3
Arranging Components into Layouts
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Arranging Components into Layouts
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Horizontal layouts
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Time for action – the main layout
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Components size
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Time for action – visualizing borders
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Time for action – setting layouts size
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Expand ratio
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Time for action – expanding components
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Split panels
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Time for action – using split panels
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Implementing a button-based menu
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Time for action – adding menu options
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Grid layouts
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Time for action – using grid layouts
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Absolute layouts
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Time for action – using absolute layouts
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Click listeners
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Time for action – adding click listeners
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Form layouts
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Time for action – using FormLayout
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Panels
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Time for action – using panels
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Tab sheets
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Accordions
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Windows
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Summary
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Using Vaadin Navigation Capabilities
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Using Vaadin Navigation Capabilities
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Getting request information
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Time for action – developing a simple website
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Time for action – reading request parameters
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Navigators and views
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Time for action – using navigators
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Time for action – navigating programmatically
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Keeping state after refresh
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Time for action – preserving application state
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User session
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Menus
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Shortcut keys
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Time for action – a tedious application
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Summary
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Using Tables – Time to Talk to Users
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Using Tables – Time to Talk to Users
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Tables
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Time for action – my first table
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Headers
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Footers
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Boxwords game
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Time for action – implementing the game UI
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Page length
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Selecting items in tables
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Time for action – listening to clicks
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Reading data from tables
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Time for action – finishing the game
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Editable tables
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Time for action – using a custom field factory
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Understanding generated columns
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Collapsing and reordering columns
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Summary
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Adding More Components
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Adding More Components
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Trees
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Time for action – my first tree
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Time for action – a file browser
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Progress indicators
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Icons
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Time for action – adding icons
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Images, Flash, video, audio, and other web content
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Time for action – render web content
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Sliders
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Color picker
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File download
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Context menus
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Drag-and-drop
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Summary
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Customizing UI Components – Time to Theme it
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Customizing UI Components – Time to Theme it
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Vaadin themes
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Time for action – changing themes
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Introduction to CSS and Sass
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Introducing Firebug and Chrome inspector
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Time for action – inspecting HTML
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Creating new themes
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Time for action – creating a new Vaadin theme
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Styling labels
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Time for action – creating a new Vaadin theme
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Adding CSS classes to components
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Styling text fields
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Styling buttons
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Styling panels
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Styling menus
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Styling tables
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Summary
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Developing Your Own Components
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Developing Your Own Components
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Custom components
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Time for action – creating a custom component
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Client side applications
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Time for action – creating a client side application
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Widgets
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Time for action – creating a widget
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Remote procedure calls
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Extensions
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Time for action – creating an extension
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Custom JavaScript
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JavaScript components
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Time for action – creating a JavaScript component
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Summary
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Pop Quiz Answers
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Pop Quiz Answers
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Chapter 1, Writing Your First Vaadin-powered Application
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Chapter 2, Using Input Components and Forms – Time to Listen to Users
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Chapter 3, Arranging Components into Layouts
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Chapter 4, Using Vaadin Navigation Capabilities
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Chapter 5, Using Tables – Time to Talk to Users
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Chapter 6, Adding More Components
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Chapter 7, Customizing UI Components – Time to Theme it
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Chapter 8, Developing Your Own Components
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Index
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Index

User session

A user session is like a place that Java web applications use to store data about each user. Each time a user access the application, a new session object is assigned to it. That means that each user has its own session. A session allows us to identify a user. It is a temporal storage where we (and Vaadin) can put data relevant to a user.

Note

Because sessions are temporal, we can configure their lifetime (or timeout) in web.xml:

<web-app ...>
   ...
  <session-config>
    <session-timeout>20</session-timeout>
  </session-config>
</web-app>

Note

Here, each session will last 20 minutes since the last time the user requested something to the server.

Vaadin automatically preserves the state of UI components (if @preserveOnRefresh is present) by storing the required UI data into the user session. We don't have to worry about preserving UI components state. However we can still use the user session to store stuff not covered by any UI component. For...

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