Groovy Builders

This is good stuff: "Make a Builder" (I think I'm about to get busy). I also think that this is why Groovy is one of the best languages to work in right now. What I love about that post is that it includes the Java code for how to build a builder and how that then affects your code.

Extending any platform built on Groovy is probably just this simple. The practical examples are absolutely price-less.