AccessDecisionManager is the base class for all access decision managers that use decision voters.
AuthorizationChecker is the main authorization point of the Security component.
Adds some function to the default ExpressionLanguage.
Define some ExpressionLanguage functions.
Decorates the original AccessDecisionManager class to log information about the security voters and the decisions made by them.


AccessDecisionManagerInterface makes authorization decisions.
The AuthorizationCheckerInterface.