By Guillaume LaForge

Guillaume will present Gaelyk, a lightweight Groovy toolkit for easily developing Groovy applications to be deployed on Google App Engine Java. We'll learn more about what the toolkit provides, how to leverage it for your own needs through some demos.

We'll see how to setup a Gaelyk application thanks to a template project, how to develop groovlets controllers and view templates, how to define routes for the URL routing system. We'll also describe all the syntax sugar and the shortcuts provided by Gaelyk on top of the Google App Engine SDK, and we'll eventually discuss briefly the simple plugin system that comes built-in.

By Guillaume LaForge

In "Groovy update, to infinity and beyond!", Guillaume Laforge will come back on Groovy's past, present and future. First, we'll do a quick review of Groovy 1.6 features: multiple assignment and option return in if/else and try/catch blocks, AST transformations with @Delegate, @Lazy, @Immutable, @Mixin and friends, the Grape dependency module, metaprogramming enhancements, JSR-223, JMX and OSGi support built-in. Then we'll dive into Groovy 1.7, especially how to simplify the creation of AST transformations, the small incremental improvements to the Groovy GDK, how to "customize the truth", power asserts, and more.

Eventually we'll discover the upcoming features in Groovy 1.8, for instance how to extend annotations beyond Java 5, potential new features such as structural pattern matching, parser combinators, actors, AST templates, and more.