Tempus_StepperBDF2ObserverBase.hpp

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//@HEADER
// *****************************************************************************
//          Tempus: Time Integration and Sensitivity Analysis Package
//
// Copyright 2017 NTESS and the Tempus contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
//@HEADER

#ifndef Tempus_StepperBDF2ObserverBase_hpp
#define Tempus_StepperBDF2ObserverBase_hpp

#include "Tempus_config.hpp"
#include "Tempus_SolutionHistory.hpp"
#include "Tempus_StepperBDF2AppAction.hpp"

namespace Tempus {

template <class Scalar>
class StepperBDF2ObserverBase
  : virtual public Tempus::StepperBDF2AppAction<Scalar> {
 private:
  /* \brief Adaptor execute function
   *
   *  This is an adaptor function to bridge between the AppAction
   *  interface and this derived interface.  It is meant to be private
   *  and non-virtual as deriving from this class should only need to
   *  implement the observe function.
   *
   *  For the Observer interface, this adaptor simply "applies" constantness
   *  to the arguments.
   */
  void execute(
      Teuchos::RCP<SolutionHistory<Scalar> > sh,
      Teuchos::RCP<StepperBDF2<Scalar> > stepper,
      const typename StepperBDF2AppAction<Scalar>::ACTION_LOCATION actLoc)
  {
    this->observe(sh, stepper, actLoc);
  }

 public:
  virtual void observe(
      Teuchos::RCP<const SolutionHistory<Scalar> > /* sh */,
      Teuchos::RCP<const StepperBDF2<Scalar> > /* stepper */,
      const typename StepperBDF2AppAction<Scalar>::ACTION_LOCATION actLoc) = 0;
};

}  // namespace Tempus

#endif  // Tempus_StepperBDF2ObserverBase_hpp