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Google App Engine is one of the key technologies to emerge in recent years to help you build scalable web applications even if you have limited previous experience. If you are a Java programmer, this book offers you a Java approach to beginning Google App Engine. You will explore the runtime environment, front-end technologies like Google Web Toolkit, Adobe Flex, and the datastore behind App Engine. You'll also explore Java support on App Engine from end to end.

The journey begins with a look at the Google Plugin for Eclipse and finishes with a working web application that uses Google Web Toolkit, Google Accounts, and Bigtable. Along the way, you’ll dig deeply into the services that are available to access the datastore with a focus on Java Data Objects (JDO), JDOQL, and other aspects of Bigtable.

With this solid foundation in place, you’ll then be ready to tackle some of the more advanced topics like integration with other cloud platforms such as Salesforce.com and Google Wave.

What you'll learn

• How to get up and running with App Engine, starting with the Google Plugin for Eclipse
• All about the development server for testing and developing your applications
• How to develop applications using Servlets & JSPs, Spring Framework, and open source Flash Remoting and Messaging servers
• How to leverage the datastore in your applications, 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 applications
• How to send email and instant messages (XMPP) from within your application
• How to increase performance of your apps by storing data in memory using the Memcache service

Who is this book for?

This book is for Java programmers looking to get started on Google App Engine, as well as App Engine programmers looking to move to Java.

About the Apress Beginning Series

The Beginning series from Apress is the right choice to get the information you need to land that crucial entry–level job. These books will teach you a standard and important technology from the ground up because they are explicitly designed to take you from “novice to professional.” You’ll start your journey by seeing what you need to know—but without needless theory and filler. You’ll build your skill set by learning how to put together real–world projects step by step. So whether your goal is your next career challenge or a new learning opportunity, the Beginning series from Apress will take you there—it is your trusted guide through unfamiliar territory!

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This book is an industry-leading primer on cloud computing: its background, the purpose it serves, how the cloud can be best utilized, which platforms offer which features, and how to get started. Cloud computing is one of today’s most interesting technologies, but remains a bit mercurial and mysterious. It can mean a lot of different things to different people. By tracing several real-world scenarios—from the requirement gathering through the design, coding, and deployment phases—this book will give you a clear understanding of what it takes to build and deploy a successful, scalable application that leverages cloud computing platforms and tools.

Furthermore, this book emphasizes the critical differences between legacy IT approaches, and explains the methodologies and features available through a cloud-based model. Frameworks and tools such as Amazon EC2, Azure, Google App Engine, Hadoop, CouchDB, Memcache, and JavaSpaces are introduced, illustrating how each technology is best utilized within the context of cloud computing.

In the end, this book clears the air and empowers you—whether you’re an IT decision maker or a career progression–minded developer—with the information and knowledge necessary to fully consider the implications of migrating to, developing, and/or using cloud-driven applications.

What you’ll learn

• How to take the vagueness out of cloud computing
• The core concepts and considerations of cloud computing
• When and when not to go to the cloud
• How to weigh the varying factors that go into ROI-based decisions of going into the cloud
• How to use various cloud computing platforms such as Amazon, Azure, and Google App Engine
• How to use cloud-based techniques and strategies

Who is this book for?

This book is intended for anyone interested in the shift currently occurring in the IT industry, in which IT resources and CPU utilization are becoming standard commodities. This book covers both general theoretical concepts and hands-on, real-world examples—targeting this book to both businesspeople and developers alike.

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