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GWT Ext is a set of UI widgets for GWT that leverage the EXT JS libraries. In order to build and deploy GWT apps that use GWT Ext, you must deploy the Ext JS libraries with your app as well. For more information click here. To see a demo, click here. GWT Ext is really a GWT wrapper over the native Javascript library of EXT JS. This is why you must include the EXT JS libraries in any project that uses GWT Ext. Here’s a tutorial that shows you how to create a GWT Ext project. What’s the difference between GWT Ext and MyGWT? MyGWT is also a set of UI widgets for GWT like GWT Ext, but MyGWT widgets are built purely in Java (using GWT), so they do not have a dependency on any native JS libraries (like GWT Ext does). This is a sub project of the EXT JS effort though. For more information click here. This library is currently at release candidate 0.5. |
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Lots of great new features in GWT 1.5.
SproutCore - Apple MobileMe JS library
SproutCore is Apple's open source JS library. Pundits claim that it will kill Flash and it can be used to write desktop apps for web browsers. Using a JS library that uses CSS styling that makes it resemble OSX's look and feel doesn't make it a desktop app :) .
Interesting videos on GWT from Google IO 2008. New DOM access API in GWT 1.5. Using Google APIs (search, maps) in GWT 1.5. And doing crazy stuff in GWT 1.5.
Ext has pulled some shenanigans to trick it's users... they adopted a bait 'n switch business policy to screw the OSS community and lots of their users... went from LGPL to GPL silently in the night. Classy and smart move on their part (sarcasm).
New Tutorial - Using GWT History to create an RSS client
This tutorial takes the background information on GWT History Management provided in the Managing History and Hyperlinks tutorial and uses it to create an RSS reader application that uses this history mechanism to load initialization parameters. The application that's built in this tutorial takes the RSS feed URL as a parameter passed to the web app's URL. You will also learn how to use ROME API, and explore different approaches to displaying application loading (splash) screens.
A conversation with Joshua Bloch on GWT
Great interview with Joshua Bloch about GWT.
New Tutorial - Using Browser History and Hyperlinks
When you are building GWT apps, that run in the context of a web browser, what should happen when the user of your app presses the Back or Forward button in their browser? GWT provides a way for your apps to hook into the browser's history mechanism, so that you can control what happens when a user hits Back or Forward in their browser. You can also programmatically manipulate the browser's history, and even create hyperlinks in your apps that can hook into the browser's history mechanism. You can even intercept these hyperlinks when a user clicks on them, instead of having the browser handle it, or both. This tutorial will show you how to leverage GWT's history mechanism and do some creative things with histories and hyperlinks that will be useful in your applications.
Coding Quickie - Get URL param string from GWT
New Tutorial - Deploying GWT Apps
There are two aspects to deploying a GWT application: client side deployment, and server side packaging and deployment. In this tutorial, I will cover the different sets of issues that are tied to each aspect of deployment and packaging. Issues around cross site scripting, integration into existing webpages/apps, deployment as widgets, and much more are discussed in detail.
New Tutorial - Using Servlet Sessions in GWT
Because GWT web applications run inside of a browser, they are limited to making requests over HTTP. HTTP is a “stateless” protocol and it doesn’t provide any facilities for tracking previous transactions. In this tutorial you will learn how to use GWT’s RPC mechanism, specifically the RemoteServiceServlet, to enable session support in your GWT application.
New Tutorial - Using and creating GWT modules
If you are trying to build a complex GWT application that needs to be split into multiple modules, or if you need to import 3rd party modules into your application, this tutorial will show you how to do both of these things. We will import the GWT Log module, and we will also create a new module that you can include as a dependency for other modules/projects.
New Tutorial - Create GWT projects using IDEA
In this tutorial, I will walk you through the tasks you need to perform in IDEA 7 to create GWT projects. We will do the following: create a new project, add resources to it (images, stylesheets), create a web facet for deployment to an app server/servlet engine, add a loading screen for your app.
Dion Almaer talks about GWT, Google Gears, Java and JavaScript
Dion Almaer talks about GWT, Google Gears, Java and JavaScript
GWT version 1.4.61 has been released.
New Tutorial - Transport Objects over RPC - GWT Object Serialization
This tutorial will teach you how to create and use Serializable objects that can be transported over GWT's RPC mechanism.
Coding Quickie - display a message while your GWT app loads
When a GWT application loads, nothing is actually displayed by your application until all the generated JavaScript has been downloaded by the browser. Find out how to display a loading screen while your GWT application is loading.
New Tutorial - Building a GWT RPC Service
One of the most important pieces of the GWT framework is the GWT Remote Procedure Call (RPC) mechanism. This RPC mechanism makes it easy for a GWT application client to make a call to server-side code. GWT RPC makes it simple to get data between the client and the server. The server-side code that gets called from the client is referred to as a service. This tutorial will teach you how to build a GWT RPC Service.
New Tutorial - Anatomy of a GWT Project
The first step in writing any GWT application is setting up a GWT Project. This tutorial will introduce you to the ins and outs of GWT projects.
New Tutorial - Introduction to GWT
The first in developerlife.com's series of GWT tutorials has been posted. This first tutorial is a technical overview of GWT.
Update - GWT Tutorials coming soon
Web 2.0 is upon us and building an AJAX web application is a vital and marketable skill. Most AJAX web application development is done using HTML and JavaScript. But what are Java developers that aren't proficient in JavaScript supposed to do. Fear not, the Google Web Toolkit (GWT) is here to the rescue. You don't have to step too far outside your comfort zone and learn JavaScript, or delve too deeply into the potential hell that is Browser development. GWT provides a Java API that lets you build component based GUIs while avoiding JavaScript, and abstracting the HTTP protocol and HTML DOM model.