Beginning Java Google App Engine (Expert's Voice in Cloud by Kyle Roche, Jeff Douglas

By Kyle Roche, Jeff Douglas

Google App Engine is without doubt one of the key applied sciences to emerge lately that can assist you construct scalable internet functions whether you will have restricted past adventure. while you are a Java programmer, this publication will give you a Java method of starting Google App Engine. you'll discover the runtime surroundings, front-end applied sciences like Google net Toolkit, Adobe Flex, and the datastore at the back of App Engine. you are going to additionally discover Java help on App Engine from finish to end.

The trip starts off with a glance on the Google Plugin for Eclipse and finishes with a operating internet program that makes use of Google internet Toolkit, Google bills, and Bigtable. alongside the best way, you are going to dig deeply into the companies which are on hand to entry the datastore with a spotlight on Java information gadgets (JDO), JDOQL, and different points of Bigtable.

With this strong beginning in position, you will then manage to take on a few of the extra complex themes like integration with different cloud structures corresponding to Salesforce.com and Google Wave.

NOTE: The resource code records which observed this identify are no longer available. Neither Apress nor the writer is ready to provide those files.

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You can see from Figure 3-5 that a decent number of artifacts were loaded with your new project. Table 3-2 gives you a look at what each one of these artifacts does. Table 3-2. xml] A GWT Module descriptor that loads the settings for GWT in this application. You can set things like the GWT theme and the application entry points here. java] The server-side implementation of the GreetingService. java] This includes the main entry point for the application as well as the code for the Synchronous and Asynchronous API for the GreetingService.

4. Restart Eclipse when prompted. Make sure you are using the Java perspective. 5. That’s because Eclipse checks for updates for all the plug-ins’ dependencies. 4 is selected in the Help ➤ Software Updates ➤ Available Software ➤ Manage Sites dialog. 5 while selecting the Google Plugin for Eclipse options from the Add Software dialog. Com CHAPTER 3 ■ GETTING STARTED WITH GOOGLE APP ENGINE FOR JAVA Figure 3-1. Installing the Google Plugin for Eclipse on a Mac (Galileo) Figure 3-2. Com CHAPTER 3 ■ GETTING STARTED WITH GOOGLE APP ENGINE FOR JAVA Signing Up for Google App Engine Before you get too far, you need to enable your Google account for access to App Engine.

Com (use a unique name) Figure 3-12. Confirming that the application was registered Now that you’ve deployed your application you have a few options for production use. com by navigating to your application’s unique domain on appspot. Com CHAPTER 3 ■ GETTING STARTED WITH GOOGLE APP ENGINE FOR JAVA Figure 3-13. If you’re using Google Apps you can create a unique domain name for your App Engine application. We’ll look at that later in the book. Figure 3-13. com Summary In this chapter you built your first Google App Engine for Java application using the Guestbook demo application that comes with the SDK.

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