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  • Book Overview & Buying DWR Java AJAX Applications
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DWR Java AJAX Applications

DWR Java AJAX Applications

By : Sami Salkosuo
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DWR Java AJAX Applications

DWR Java AJAX Applications

5 (2)
By: Sami Salkosuo
Buy this Book

Overview of this book

The initial part guides the reader through the features of DWR and how it works to make the developer ready for practical implementation. The later part contains plenty of code (with explanations) and graphical interface-driven step-by-step examples, which the reader can try out while surfing through the book to learn by doing. This book is written for competent Java developers and assumes that you are a professional rather than hobbyist. You should be familiar with the concepts of programming, Web 2.0, and AJAX.
Table of Contents (12 chapters)
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DWR Java AJAX Applications
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DWR Java AJAX Applications
Credits
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Credits
About the Author
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About the Author
About the Reviewers
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About the Reviewers
Preface
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Preface
Lock Free Chapter
1
Introduction
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Introduction
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What is AJAX?
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DWR: AJAX for Java Developers
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The DWR Community
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Summary
2
DWR Features
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DWR Features
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Ease of Use
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Reverse AJAX
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DWR JavaScript Libraries
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Converters
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Creators, Filters, and Signatures
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Integration with Other Projects
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Security
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Summary
3
Getting Started
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Getting Started
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Supported Browsers and Environments
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Configuration
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Setting up a Development Environment
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Testing and Debugging
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Error Handling
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Packaging and Deployment
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Summary
4
User Interface: Basic Elements
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User Interface: Basic Elements
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Creating a Dynamic User Interface
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Implementing Tables and Lists
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Implementing Field Completion
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Summary
5
User Interface: Advanced Elements
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User Interface: Advanced Elements
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Creating Forms
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Building a Navigation Tree
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Map Scrolling Using DWR
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Summary
6
Backend Integration
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Backend Integration
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Integrating a Database with DWR
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Integrating with Web Services
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Integrating with a Messaging System
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Summary
7
Sample Applications
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Sample Applications
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Collaborative Book Authoring
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Chatroom
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Summary

Configuration

DWR is configured using XML files, annotations, or Fluent Interface style. Using XML files is the most typical method for DWR configuration, and there are two files: web.xml and dwr.xml. The first one, web.xml, is a must for other configuration methods also. Annotations and fluent-style configurations may be used in place of dwr.xml. This section describes the configuration methods and how to use them.

web.xml

Configuration starts by defining the DWR servlet in the web application's web.xml configuration file. This is, of course, mandatory since DWR would not work without it. A minimum configuration does not have any init parameters, and is shown as follows: 

<servlet>
<servlet-name>dwrservlet</servlet-name>
<servlet-class>org.directwebremoting.servlet.DwrServlet</servlet- class>
</servlet>
<servlet-mapping>
<servlet-name>dwrservlet</servlet-name>
<url-pattern>/dwrservlet/*</url-pattern>
</servlet-mapping&gt...
CONTINUE READING
83
Tech Concepts
36
Programming languages
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DWR Java AJAX Applications
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