Ext JS 2.1 now GPL :(

April 22, 2008

Unfortunately Ext JS 2.1 (and Ext GWT 1.0) have been released under the GPL. This will make Ext more difficult to sell to corporate clients.

Ext JS 2.0.2 is still available for download under a LGPL licence and can be used with the GWT integration found in the GWT-Ext project (not to be confused with Ext GWT). i.e. GWT-Ext 2.0.3 and Ext 2.0.2 are still both LGPL. I wonder if Ext GWT 1.0 (GPL) started life as GWT-Ext 2.0.3 (LGPL)…

I wonder if a fork will appear… or perhaps a Yahoo! UI on GWT or a Tibco GI on GWT. Both YUI and GI are BSD and so very business friendly.

I discovered a promise of a tibcogi4gwt project but nothing more 😦

Update: more info can be found in a post by the author of GWT-Ext.


Super Mario in JavaScript

April 10, 2008

It’s amazing to see this implemented in JavaScript!

Note that there seems to be only one level to the game which isn’t entirely implemented. It’s the concept that such a beast can be implemented in JavaScript rather than Flash that’s interesting.

My Golden Compass “Daemon” personality

January 20, 2008


Rob Pike on concurrency

September 18, 2007

Watch this great Google talk with Rob Pike. He talks about concurrent processes and message passing in the context of Newsqueak – a programming language that he wrote 20 years ago. What he describes is very similar to the Erlang programming model except that channels are first class citizens.

Java Puzzlers

August 24, 2007

Go directly to here if you think you know all the dark corners of the Java language and APIs. It’s a really worthwhile Google TechTalk. You will come away thinking that you had better set up automated FindBugs analysis of your code!

First steps to Scala

August 14, 2007

If you’re interested in the Scala programming language then this article will come in handy. I learned a couple of things. In particular, I didn’t realise that you could instantiate an object with a trait (effectively changing the trait from the one specified in the class definition). Very interested in how that is implemented.

More praise for Wicket

July 22, 2007

Wicket has finally graduated to become a top level Apache project and is receiving a much praise as ever.