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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// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
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// Lesser General Public License for more details.
//  
// You should have received a copy of the GNU Lesser General Public
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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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:

#ifdef THYRA_INJECT_USING_DECLARATIONS
  using SingleScalarLinearOpBase<Scalar>::apply;
#endif


  DefaultAddedLinearOp();

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

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

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

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

  void uninitialize();



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



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

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

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


                                                
  std::string description() const;

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


protected:


  bool opSupported(EOpTransp M_trans) const;

  void apply(
    const EOpTransp 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>
RCP<LinearOpBase<Scalar> >
nonconstAdd(
  const RCP<LinearOpBase<Scalar> > &A,
  const RCP<LinearOpBase<Scalar> > &B,
  const std::string &label = ""
  );


template<class Scalar>
RCP<const LinearOpBase<Scalar> >
add(
  const RCP<const LinearOpBase<Scalar> > &A,
  const RCP<const LinearOpBase<Scalar> > &B,
  const std::string &label = ""
  );


template<class Scalar>
RCP<LinearOpBase<Scalar> >
nonconstSubtract(
  const RCP<LinearOpBase<Scalar> > &A,
  const RCP<LinearOpBase<Scalar> > &B,
  const std::string &label = ""
  );


template<class Scalar>
RCP<const LinearOpBase<Scalar> >
subtract(
  const RCP<const LinearOpBase<Scalar> > &A,
  const RCP<const LinearOpBase<Scalar> > &B,
  const std::string &label = ""
  );


// /////////////////////////////////
// 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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