SolutionHistory is basically a container of SolutionStates. SolutionHistory maintains a collection of...
virtual void observe(Teuchos::RCP< const SolutionHistory< Scalar > >, Teuchos::RCP< const StepperLeapfrog< Scalar > >, const typename StepperLeapfrogAppAction< Scalar >::ACTION_LOCATION actLoc)=0
Observe Leapfrog Stepper.