If you are a Java programmer, this book offers a Java approach to the start of the Google App Engine. You will explore the runtime environment, front-end technologies like Google Web Toolkit, Adobe Flex, and behind the App Engine Datastore. You will also explore support for Java in App Engine from end to end. The journey begins by looking at Google plugin for Eclipse and ended with a working web application using Google Web Toolkit, Google Accounts, and Bigtable. What you will learn how to get up and running with App Engine, starting with Google Plugin for Eclipse All of the development server to test and develop your applications How to develop applications using Servlets and JSPS, Spring Framework, and open source Flash Remoting and Messaging server How to use the Datastore in your application, including Persistence as a Service How to use Spring as a service for transactions, data access, and more How to use Google Web Toolkit to create AJAX components to drive your web application How to send email and instant messaging (XMPP) from the your application How to increase your application performance by storing data in memory using memcache service Who this book? This book is for Java programmers who want to get started on Google App Engine, App Engine and programmers looking to move to Java.