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Thyra_ScalarProdVectorSpaceBase_decl.hpp
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00001 // @HEADER
00002 // ***********************************************************************
00003 // 
00004 //    Thyra: Interfaces and Support for Abstract Numerical Algorithms
00005 //                 Copyright (2004) Sandia Corporation
00006 // 
00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
00008 // license for use of this work by or on behalf of the U.S. Government.
00009 // 
00010 // This library is free software; you can redistribute it and/or modify
00011 // it under the terms of the GNU Lesser General Public License as
00012 // published by the Free Software Foundation; either version 2.1 of the
00013 // License, or (at your option) any later version.
00014 //  
00015 // This library is distributed in the hope that it will be useful, but
00016 // WITHOUT ANY WARRANTY; without even the implied warranty of
00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00018 // Lesser General Public License for more details.
00019 //  
00020 // You should have received a copy of the GNU Lesser General Public
00021 // License along with this library; if not, write to the Free Software
00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
00023 // USA
00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
00025 // 
00026 // ***********************************************************************
00027 // @HEADER
00028 
00029 #ifndef THYRA_SCALAR_PROD_VECTOR_SPACE_BASE_DECL_HPP
00030 #define THYRA_SCALAR_PROD_VECTOR_SPACE_BASE_DECL_HPP
00031 
00032 #include "Thyra_OperatorVectorAdapterSupportTypes.hpp"
00033 #include "Thyra_VectorSpaceDefaultBase.hpp"
00034 
00035 
00036 namespace Thyra {
00037 
00038 
00071 template<class Scalar>
00072 class ScalarProdVectorSpaceBase : virtual public VectorSpaceDefaultBase<Scalar> {
00073 public:
00074 
00077 
00087   ScalarProdVectorSpaceBase();
00088 
00104   ScalarProdVectorSpaceBase(
00105     const RCP<const ScalarProdBase<Scalar> > &scalarProd );
00106 
00127   virtual void setScalarProd(
00128     const RCP<const ScalarProdBase<Scalar> > &scalarProd );
00129 
00132   RCP<const ScalarProdBase<Scalar> > getScalarProd() const;
00133 
00135 
00138   
00140   bool isEuclidean() const;
00142   Scalar scalarProd(
00143     const VectorBase<Scalar>& x, const VectorBase<Scalar>& y ) const;
00145   void scalarProdsImpl(
00146     const MultiVectorBase<Scalar>& X, const MultiVectorBase<Scalar>& Y,
00147     const ArrayView<Scalar> &scalarProds_out ) const;
00148   
00150 
00151 private:
00152 
00153   RCP<const ScalarProdBase<Scalar> > scalarProd_;
00154 
00155 };
00156 
00157 
00162 template<class Scalar>
00163 RCP<const ScalarProdVectorSpaceBase<Scalar> >
00164 createSmallScalarProdVectorSpaceBase(
00165   const RCP<const VectorSpaceBase<Scalar> > &vs,
00166   const Ordinal dim
00167   )
00168 {
00169   return Teuchos::rcp_dynamic_cast<const ScalarProdVectorSpaceBase<Scalar> >(
00170     vs->smallVecSpcFcty()->createVecSpc(dim), true);
00171 }
00172 
00173 
00174 } // end namespace Thyra
00175 
00176 
00177 #endif  // THYRA_SCALAR_PROD_VECTOR_SPACE_BASE_DECL_HPP
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