[wizkid]

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The recently released Google Web Toolkit (GWT) is a comprehensive set of APIs and tools that lets you create dynamic Web applications almost entirely in Java™ code. Philip McCarthy returns to his popular Ajax for Java developers series to show you what GWT can do and help you decide whether it's right for you. (Note: You can now download an updated ZIP file containing the article source code.)


The GWT (see Resources) takes an unusual approach to Web application development. Rather than employing the normal separation of client-side and server-side codebases, GWT provides a Java API that lets you create component-based GUIs and then compile them for display in the user's Web browser. Using GWT is far closer to developing with Swing or SWT than the usual experience of Web application development, and it tries to abstract away the HTTP protocol and the HTML DOM model. Indeed, the fact that the application ends up being rendered in a Web browser feels almost incidental.

GWT achieves these feats through code generation, with GWT's compiler generating JavaScript from your client-side Java code. It supports a subset of the java.lang and java.util packages, along with the APIs that GWT itself provides. A compiled GWT application consists of fragments of HTML, XML, and JavaScript. However, these are pretty much indecipherable, and the compiled application is best regarded as a black box -- GWT's equivalent of Java bytecode.




http://www-128.ibm.com/developerwork...ax4/index.html


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[vjsreevs]

wiz nice post !!!