Following the conference-driven development principle, right in time for the Devoxx conference and my session with my friend Patrick Chanezon on Google App Engine Java and Gaelyk/Groovy, I’ve just released a new version (0.3) of the Gaelyk lightweight Groovy toolkit for Google App Engine. This new version fixes a bug, adds some new capabilities, and bring a small change: The Google services bound to the Groovlets and templates through the binding have been renamed (except userService) to remove the service suffix There are some new methods for working with the memcache service, so you can use the map notation (subscript) to access elements of the cache, as well as using the ‘in’ keyword to check whether a key is present in the cache. Read more...

Gaelyk is a lightweight toolkit for developing and deploying applications on Google App Engine. As Google recently released an updated version of their Google App Engine SDK, providing support for XMPP/Jabber messaging and Task Queues, I’ve worked on a new Gaelyk version providing support for these new features, with a Groovy touch. Gaelyk can be downloaded here: http://gaelyk.appspot.com/download/ You can have a look at the latest tutorial updated with coverage of: Read more...

Time flies, soooo fast! Griffon, the Groovy MVC framework for building desktop applications, is already one year old. Developers know Groovy and Grails very well, but there are many other Groovy-based tools and frameworks, and Griffon is a very nice and successful animal of the Groovy ecosystem. Others are already celebrating this first anniversary on twitter, as well as in the blogosphere, like some of the Griffon developers: Jim Shingler James Williams Andres Almiray Josh Reed Danno Ferrin With tons of plugins, books in the writing, Griffon is really gaining a lot of momentum and mindshare! Read more...

Une fois n’est pas coutume, je bloguerai en français dans cette catégorie tech, pour vous annoncer la sortie du podcast des Cast Codeurs ! Les Cast Codeurs, c’est un podcast en français dans le code sur Java par Emmanuel Bernard (JBoss / Hibernate), Guillaume Laforge (SpringSource / Groovy), Antonio Goncalves (freelance / Paris JUG lead) et Vincent Massol (XWiki / Maven). Restez informés sur les sujets brûlants de l’industrie Java. Plongez sur un sujet précis avec l’interview de l’éposiode. Read more...

The news has already spread all around, even on our mailing-lists, but let me echo it again here: Groovy is now supported in the newly released Google App Engine Java platform! My friend Didier Girard beats me to it and had already blogged about the support of both Java and Groovy (in French). He was quicker than me… or at least woke up earlier than me ;-) SpringSource’s worked with Google to ensure that Groovy would run well on their platform. Read more...

I’m pleased to announce here the organization of a European conference dedicated to Groovy, Grails and Griffon:GR8 Conference — Copenhagen — May 2009 The GR8 Conference is an affordable two-day conference taking place in Copenhagen, Denmark, on May 18th and 19th 2009, organized by Javagruppen(Danish JUG) and SpringSource, dedicated to the Groovy dynamic language, the Grails web framework, the Griffon Swing framework, and other great technologies — hence the pun and code name GR8. Read more...

There’s always a lot of activity around Groovy and Groovy-related technologies, but these days, it’s pretty hot! First of all, InfoQ released my “What’s new in Groovy 1.6?” article going in depth into all the new features of Groovy 1.6, with explanations and code samples. Please vote for it on DZone (Guerilla Marketing rulezzz) If you want to attend a Groovy / Grails / Griffon dedicated conference, you should definitely go to the GR8 Conference, in Copenhagen, Denmark, in May. Read more...

Groovy is a very successful and powerful dynamic language for the Java Virtual Machine that provides seamless integration with Java, and has its roots firmly planted in Java itself for the syntax and APIs and other languages such as Smalltalk, Python or Ruby for its dynamic capabilities. Groovy is used in many Open Source projects such as Grails, Spring, JBoss Seam and more, as well as integrated in commercial products and Fortune 500 mission-critical applications for its scripting capabilities offering a nice extension mechanism to these applications, or for its ability to let subject matter experts and developers author embedded Domain-Specific Languages to express business concepts in a readable and maintainable fashion. Read more...

This is with very great pleasure and honor that I’m announcing the final release of Groovy 1.6, on behalf of the Groovy development team and SpringSource. Obviously, 1.6 is a very important milestone for the project, with several great new features and improvements: great runtime performance improvements multiple assignments optional return in if/else and try/catch blocks AST transformations and all the provided transformation annotations like @Singleton, @Lazy, @Immutable, @Delegate and friends the Grape module and dependency system and its @Grab transformation various Swing builder improvements, thanks to the Swing / Griffon (http://griffon. Read more...

The Groovy development team and SpringSource are pleased to announce the second candidate for Groovy 1.6. This release is a bug fix release, and as you can see by looking at the JIRA issues closed (almost a hundred), a lot of work has been done to ensure that our next major release is of great quality, and various improvements have been introduced – check for instance the much nicer and thourough output of GroovyDoc! Read more...