The Definitive guide to Grails 2

To understand Grails, you first need to understand its goal: to dramatically simplify enterprise Java web development. To take web development to the next level of abstraction. To tap into what has been accessible to developers on other platforms for years. To have all this while still retaining the flexibility to drop down into the underlying technologies and utilize their richness and maturity. Simply put, we Java developers want to “have our cake and eat it, too.”