Understanding Controllers
Graeme Rocher, Jeff L. Brown · Apress eBooks · 2009
A Grails controller is a class that is responsible for handling requests coming in to the application. The controller receives the request, potentially does some work with the request, and finally decides what should happen next. What happens next might include the following: Execute another controller action (possibly, but not necessarily, in the same controller) Render a view Render information directly to the response These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.