Beginning Google Web Toolkit: From Novice to Professional by Bram Smeets

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By Bram Smeets

The open resource, light-weight Google internet Toolkit (GWT) is a framework that permits Java builders to construct wealthy web purposes (RIA), extra lately referred to as Ajax purposes, in Java. in most cases, writing those purposes calls for loads of JavaScript improvement. despite the fact that, Java and JavaScript are very distinctively diversified languages (although the identify indicates otherwise), for this reason requiring a distinct improvement procedure.

In Beginning Google internet Toolkit: From beginner to Professional, you’ll discover ways to construct wealthy, user–friendly internet purposes utilizing a well-liked Java–based Ajax net framework, the Google internet Toolkit. The authors will consultant you thru the whole improvement of a GWT entrance finish program with a no–nonsense, down–to–earth strategy.

You’ll begin with the 1st steps of operating with GWT and learn how to comprehend the options and effects of creating this type of software. throughout the process the e-book, the entire key points of GWT are tackled pragmatically, as you’re utilizing them to construct a real–world pattern program. in contrast to many different books, the interior workings of GWT and different pointless information are shelved, so that you can concentrate on the stuff that actually issues whilst constructing GWT purposes.

What you’ll learn

  • Get an effective origin to boost RIAs.
  • Understand the fundamentals of the GWT Framework and its components.
  • Fit GWT into your application’s lifestyles cycle and improvement method.
  • Develop wealthy net front–end GUIs utilizing widgets, composite widgets, panels, and lots more and plenty extra.
  • Integrate with RPC, and numerous different information codecs.
  • Reinforce rules realized through the booklet by way of operating via a real–world pattern program created with GWT from scratch.

Who is that this ebook for?

Beginning Google net Toolkit: From beginner to Professional is written for Java builders of all degrees who are looking to commence construction wealthy web functions. The ebook assumes no earlier wisdom of constructing Ajax functions and/or operating with JavaScript.

About the Apress starting Series

The starting sequence from Apress is the perfect option to get the knowledge you must land that an important entry–level activity. those books will train you a customary and critical expertise from the floor up simply because they're explicitly designed to take you from “novice to professional.” You’ll commence your trip by means of seeing what you must know—but with no useless conception and filler. You’ll construct your ability set via studying find out how to prepare real–world initiatives step-by-step. So no matter if your aim is your subsequent occupation problem or a brand new studying chance, the start sequence from Apress will take you there—it is your relied on advisor via strange territory!

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Once successfully started, you should see a screen similar to the one in Figure 2-3. Figure 2-3. The login screen of the GWTasks sample application Clicking on the icon in the right corner of the Login dialog opens the Register pop-up dialog (see Figure 2-4), which you can use to register a new user. Either submit the form or click the Cancel button to go back to the Login dialog. Figure 2-4. The register screen of the GWTasks sample application Submitting the Login form will bring you to the main screen of the GWTasks application, as shown in Figure 2-5.

Although these differences are subtle, they tend to have dramatic results, so be careful when using regular expressions. • Serialization—Java serialization depends heavily on reflection, and is therefore unavailable in GWT. However, GWT provides its own mechanism for doing serialization as part of its RPC support, as explained in Chapter 6. Convenient Classes As you might have already noticed, some basic classes that developers tend to use a lot aren’t available as part of the GWT emulated classes.

It shows whether images, style sheets, and scripts are compressed and cached correctly. Firebug also lists the HTTP headers that are sent and received, as well as the amount of caching that’s applied. com/. LiveHTTPHeaders Another valuable add-on to Firefox is LiveHTTPHeaders, which lets you look inside the HTTP headers that the browser sends and receives for loading a page. This is handy, especially for making sure that not too many requests are issued to different servers. As you may know, browsers can typically issue only around three simultaneous requests to the server.

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