Thyra_DefaultAddedLinearOpDecl.hpp

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// 
//    Thyra: Interfaces and Support for Abstract Numerical Algorithms
//                 Copyright (2004) Sandia Corporation
// 
// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
// license for use of this work by or on behalf of the U.S. Government.
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// Lesser General Public License for more details.
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
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#ifndef THYRA_DEFAULT_ADDED_LINEAR_OP_DECL_HPP
#define THYRA_DEFAULT_ADDED_LINEAR_OP_DECL_HPP

#include "Thyra_AddedLinearOpBase.hpp"
#include "Thyra_SingleScalarLinearOpBase.hpp"
#include "Teuchos_ConstNonconstObjectContainer.hpp"
#include "Teuchos_arrayArg.hpp"

namespace Thyra {

template<class Scalar>
class DefaultAddedLinearOp
  : virtual public AddedLinearOpBase<Scalar>             // Public interface
  , virtual protected SingleScalarLinearOpBase<Scalar>   // Implementation detail
{
public:

  using SingleScalarLinearOpBase<Scalar>::apply;


  DefaultAddedLinearOp();

  DefaultAddedLinearOp(
    const int                                                   numOps
    ,const Teuchos::RCP<LinearOpBase<Scalar> >          Ops[]
    );

  DefaultAddedLinearOp(
    const int                                                   numOps
    ,const Teuchos::RCP<const LinearOpBase<Scalar> >    Ops[]
    );

  void initialize(
    const int                                                   numOps
    ,const Teuchos::RCP<LinearOpBase<Scalar> >          Ops[]
    );

  void initialize(
    const int                                                   numOps
    ,const Teuchos::RCP<const LinearOpBase<Scalar> >    Ops[]
    );

  void uninitialize();



  int numOps() const;
  bool opIsConst(const int k) const;
  Teuchos::RCP<LinearOpBase<Scalar> > getNonconstOp(const int k);
  Teuchos::RCP<const LinearOpBase<Scalar> > getOp(const int k) const;



  Teuchos::RCP< const VectorSpaceBase<Scalar> > range() const;

  Teuchos::RCP< const VectorSpaceBase<Scalar> > domain() const;

  Teuchos::RCP<const LinearOpBase<Scalar> > clone() const;


                                                
  std::string description() const;

  void describe(
    Teuchos::FancyOStream                &out
    ,const Teuchos::EVerbosityLevel      verbLevel
    ) const;


protected:


  bool opSupported(ETransp M_trans) const;

  void apply(
    const ETransp                     M_trans
    ,const MultiVectorBase<Scalar>    &X
    ,MultiVectorBase<Scalar>          *Y
    ,const Scalar                     alpha
    ,const Scalar                     beta
    ) const;


private:

  std::vector<Teuchos::ConstNonconstObjectContainer<LinearOpBase<Scalar> > >   Ops_;

  void assertInitialized() const;
  void validateOps();
  void setupDefaultObjectLabel();

  // Not defined and not to be called
  DefaultAddedLinearOp(const DefaultAddedLinearOp&);
  DefaultAddedLinearOp& operator=(const DefaultAddedLinearOp&);

};

template<class Scalar>
Teuchos::RCP<LinearOpBase<Scalar> >
nonconstAdd(
  const Teuchos::RCP<LinearOpBase<Scalar> >    &A
  ,const Teuchos::RCP<LinearOpBase<Scalar> >   &B
  );

template<class Scalar>
Teuchos::RCP<const LinearOpBase<Scalar> >
add(
  const Teuchos::RCP<const LinearOpBase<Scalar> >    &A
  ,const Teuchos::RCP<const LinearOpBase<Scalar> >   &B
  );

// /////////////////////////////////
// Inline members

template<class Scalar>
inline
void DefaultAddedLinearOp<Scalar>::assertInitialized() const
{
#ifdef TEUCHOS_DEBUG
  TEST_FOR_EXCEPT( !( numOps() > 0 ) );
#endif
}

} // end namespace Thyra

#endif  // THYRA_DEFAULT_ADDED_LINEAR_OP_DECL_HPP

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