Thyra_ScaledLinearOpBase.hpp

// @HEADER
// *****************************************************************************
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//
// Copyright 2004 NTESS and the Thyra contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef THYRA_SCALED_LINEAR_OP_BASE_HPP
#define THYRA_SCALED_LINEAR_OP_BASE_HPP

#include "Thyra_LinearOpBase_decl.hpp"


namespace Thyra {


template<class Scalar>
class ScaledLinearOpBase : virtual public LinearOpBase<Scalar> {
public:


  bool supportsScaleLeft() const
    { return supportsScaleLeftImpl(); }

  bool supportsScaleRight() const
    { return supportsScaleRightImpl(); }

  void scaleLeft(const VectorBase<Scalar> &row_scaling)
    { scaleLeftImpl(row_scaling); }

  void scaleRight(const VectorBase<Scalar> &col_scaling)
    { scaleRightImpl(col_scaling); }


protected:


  virtual bool supportsScaleLeftImpl() const = 0;

  virtual bool supportsScaleRightImpl() const = 0;

  virtual void scaleLeftImpl(const VectorBase<Scalar> &row_scaling) = 0;

  virtual void scaleRightImpl(const VectorBase<Scalar> &col_scaling) = 0;


};


} // end namespace Thyra


#endif  // THYRA_SCALED_LINEAR_OP_BASE_HPP