Thyra_LinearOpScalarProd_decl.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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#ifndef THYRA_LINEAR_OP_SCALAR_PROD_DECL_HPP
#define THYRA_LINEAR_OP_SCALAR_PROD_DECL_HPP


#include "Thyra_ScalarProdBase_decl.hpp"


namespace Thyra {

template<class Scalar>
class LinearOpScalarProd : public ScalarProdBase<Scalar> {
public:


  LinearOpScalarProd();

  LinearOpScalarProd( const RCP<const LinearOpBase<Scalar> > &op );

  void initialize( const RCP<const LinearOpBase<Scalar> > &op );

  const RCP<const LinearOpBase<Scalar> >& op() const;

  void uninitialize(
    const Ptr<RCP<const LinearOpBase<Scalar> > > &op = Teuchos::null );


protected:
  

  virtual bool isEuclideanImpl() const;

  void scalarProdsImpl(
    const MultiVectorBase<Scalar>& X, const MultiVectorBase<Scalar>& Y,
    const ArrayView<Scalar> &scalarProds_out
    ) const;
  
  virtual void euclideanApplyImpl(
    const EuclideanLinearOpBase<Scalar> &M,
    const EOpTransp M_trans,
    const MultiVectorBase<Scalar> &X,
    const Ptr<MultiVectorBase<Scalar> > &Y,
    const Scalar alpha,
    const Scalar beta
    ) const;


private:

  RCP<const LinearOpBase<Scalar> >  op_;

};


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


template<class Scalar>
inline
const RCP<const LinearOpBase<Scalar> >& LinearOpScalarProd<Scalar>::op() const
{
  return op_;
}


} // end namespace Thyra


#endif  // THYRA_LINEAR_OP_SCALAR_PROD_DECL_HPP

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