Thyra_BlockedLinearOpBase.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_BLOCKED_LINEAR_OP_BASE_HPP
#define THYRA_BLOCKED_LINEAR_OP_BASE_HPP


#include "Thyra_LinearOpBase.hpp"


namespace Thyra {


template <class Scalar> class ProductVectorSpaceBase;

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

  virtual Teuchos::RCP<const ProductVectorSpaceBase<Scalar> >
  productRange() const = 0;

  virtual Teuchos::RCP<const ProductVectorSpaceBase<Scalar> >
  productDomain() const = 0;

  virtual bool blockExists(const int i, const int j) const = 0; 

  virtual bool blockIsConst(const int i, const int j) const = 0; 

  virtual Teuchos::RCP<LinearOpBase<Scalar> >
  getNonconstBlock(const int i, const int j) = 0; 

  virtual Teuchos::RCP<const LinearOpBase<Scalar> >
  getBlock(const int i, const int j) const = 0; 

};


} // namespace Thyra


#endif // THYRA_BLOCKED_LINEAR_OP_BASE_HPP