A piece of 'action check' functionality. Provided by actions themselves, but security
implementations can perhaps also use this interface to administer their implementation of
Authorization.check(UserContextAction) .
author: Michiel Meeuwissen version: $Id: ActionChecker.java,v 1.5 2008/02/03 17:33:57 nklasens Exp $ since: MMBase-1.9
Inner Class :public static class Rank implements ActionChecker