(Quick Reference)
scope
Purpose
Changes the scope of a controller
Examples
class BookController { static scope = "session" // …
}
Description
Unless specified by the
grails.controllers.defaultScope
property in
application.yml
, controllers by default are "prototype" scoped which means that a new controller will be created for each request.
This behaviour can be set for an individual controller by specifying a
scope
attribute with one of the following values:
prototype
(default) - A new controller will be created for each request (recommended for actions as Closure properties)
session
- One controller is created for the scope of a user session
singleton
- Only one instance of the controller ever exists (recommended for actions as methods)
See
Controllers and Scopes in the user guide for more information.