I just gave the Groovy Integration Patterns talk at GR8Conf.us otherwise known as the Grobnicating Frobnicator talk. Where I take us on a journey through techniques on introducing Groovy into Enterprisey environments, along the way I take a really brief foray into the "Planet of the Monkey Patches" where we discuss some interesting interactions you can do with Groovy embedded in a mostly Java application. Then we move into the world of multi-tennant Java applications that can leverage Groovy and Groovy DSL to swap out function in configuration or dynamically at run-time.
The code is over at https://github.com/hartsock/groovy-integration-patterns
