Thyra_MultiVectorColsDecl.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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// it under the terms of the GNU Lesser General Public License as
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#ifndef TSF_MULTI_VECTOR_COlS_DECL_HPP
#define TSF_MULTI_VECTOR_COlS_DECL_HPP

#include "Thyra_MultiVectorDefaultBase.hpp"
#include "Thyra_VectorSpaceBase.hpp"
#include "Thyra_VectorBase.hpp"
#include "Thyra_SingleRhsLinearOpBase.hpp"

namespace Thyra {

template<class Scalar>
class MultiVectorCols
  : virtual public MultiVectorDefaultBase<Scalar>
  , virtual protected SingleRhsLinearOpBase<Scalar>
{
public:

  using SingleRhsLinearOpBase<Scalar>::apply;
  using MultiVectorDefaultBase<Scalar>::col; // Inject *all* functions!
  using MultiVectorDefaultBase<Scalar>::subView; // Inject *all* functions!


  MultiVectorCols();

  MultiVectorCols(
    const Teuchos::RefCountPtr<VectorBase<Scalar> > &col_vec
    );

  MultiVectorCols(
    const Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >          &range
    ,const Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >         &domain
    ,const Teuchos::RefCountPtr<VectorBase<Scalar> >                    col_vecs[] = NULL
    );
  
  void initialize(
    const Teuchos::RefCountPtr<VectorBase<Scalar> > &col_vec
    );

  void initialize(
    const Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >          &range
    ,const Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >         &domain
    ,const Teuchos::RefCountPtr<VectorBase<Scalar> >                    col_vecs[] = NULL
    );

  void set_uninitialized();


  Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> > range() const;
  Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> > domain() const;

  Teuchos::RefCountPtr<VectorBase<Scalar> > col(Index j);
  Teuchos::RefCountPtr<MultiVectorBase<Scalar> > subView( const Range1D& col_rng );

protected:


  bool opSupported(ETransp M_trans) const;

  void apply(
    const ETransp                M_trans
    ,const VectorBase<Scalar>    &x
    ,VectorBase<Scalar>          *y
    ,const Scalar                alpha
    ,const Scalar                beta
    ) const;


private:
  
  Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >        range_;
  Teuchos::RefCountPtr<const VectorSpaceBase<Scalar> >        domain_;
  std::vector< Teuchos::RefCountPtr<VectorBase<Scalar> > >    col_vecs_;
  int                                                         num_cols_;
  
}; // end class MultiVectorCols

} // end namespace Thyra

#endif // TSF_MULTI_VECTOR_COlS_DECL_HPP

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