Grails

Grails is a next-generation web development framework powered by Groovy and Java technologies.

Dependencies

• Grails use the embeddable Groovy jar. You will run into problems if you use the standalone Groovy jar.

• Grails use currently as of 0.5.0 a custom build of a Spring-modules snapshot. You must thus use the .jar provided in Grails distribution.

• Grails use version 2.1 of commons-lang.

Deployment and build system

• Under the hood, Grails uses Gant as its build system. Gant is based on Ant but allows you to write build files with Groovy code: you are no longer restrained to XML programming!

• If you write your own Gant scripts (in $PROJECT_HOME/scripts), you can apparently completely customize the build process.

• Note that when running the embedded Jetty server (or when running any Grails script for that matter), the additional JAR dependencies are loaded in the classpath.

Questions

• Does scaffolding works on deployed environment or only on the test container?

• How to package a WAR file for deployment on a servlet container, and customize the process?