public BehaviorQueryHandlerDecorator(
     IQueryHandler <TQuery, TResult> decoratee,
     IBehaviorMediator behaviorMediator)
 {
     _decoratee        = decoratee;
     _behaviorMediator = behaviorMediator;
 }
 public BehaviorCommandHandlerDecorator(
     ICommandHandler <TCommand> decoratee,
     IBehaviorMediator behaviorMediator)
 {
     _decoratee        = decoratee;
     _behaviorMediator = behaviorMediator;
 }