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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.
//
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation; either version 2.1 of the
// License, or (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
// USA
// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
//
// ***********************************************************************
// @HEADER
#ifndef THYRA_LINEAR_OP_SCALAR_PROD_DECL_HPP
#define THYRA_LINEAR_OP_SCALAR_PROD_DECL_HPP
#include "Thyra_ScalarProdBase_decl.hpp"
namespace Thyra {
/** \brief Concrete implementation of a scalar product using a symmetric
* positive-definite linear operator.
*
* This subclass will work with any <tt>VectorBase</tt> or
* <tt>MultiVectorBase</tt> implementation who's vector spaces are compatible
* with the underlying symmetric positive-definite linear operator object.
*
* \ingroup Thyra_Op_Vec_basic_adapter_support_grp
*/
template<class Scalar>
class LinearOpScalarProd : public ScalarProdBase<Scalar> {
public:
/** @name Constructors, initializers, accessors */
//@{
/** \brief . */
LinearOpScalarProd();
/** \brief . */
LinearOpScalarProd( const RCP<const LinearOpBase<Scalar> > &op );
/** \brief . */
void initialize( const RCP<const LinearOpBase<Scalar> > &op );
/** \brief . */
const RCP<const LinearOpBase<Scalar> >& op() const;
/** \brief . */
void uninitialize(
const Ptr<RCP<const LinearOpBase<Scalar> > > &op = Teuchos::null );
//@}
protected:
/** @name Overridden from ScalarProdBase */
//@{
/** \brief Returns <tt>false</tt>. */
virtual bool isEuclideanImpl() const;
/** \brief . */
void scalarProdsImpl(
const MultiVectorBase<Scalar>& X, const MultiVectorBase<Scalar>& Y,
const ArrayView<Scalar> &scalarProds_out
) const;
/** \brief . */
RCP<const LinearOpBase<Scalar> > getLinearOpImpl() 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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