| MethodSecurityExpressionHandler | Extended expression-handler facade which adds methods which are specific to securing method invocations. |
| DefaultMethodSecurityExpressionHandler | The standard implementation of MethodSecurityExpressionHandler. |
| ExpressionBasedAnnotationAttributeFactory | PrePostInvocationAttributeFactory which interprets the annotation value as
an expression to be evaluated at runtime. |
| ExpressionBasedPostInvocationAdvice | |
| ExpressionBasedPreInvocationAdvice | Method pre-invocation handling based on expressions. |