Thyra_ProductVectorBase.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.
// 
// 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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// This library is distributed in the hope that it will be useful, but
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// 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
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov) 
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#ifndef THYRA_PRODUCT_VECTOR_BASE_HPP
#define THYRA_PRODUCT_VECTOR_BASE_HPP


#include "Thyra_ProductMultiVectorBase.hpp"


namespace Thyra {


template<class Scalar>
class ProductVectorBase
  : virtual public VectorBase<Scalar>
  , virtual public ProductMultiVectorBase<Scalar>
{
public:

  virtual RCP<VectorBase<Scalar> >
  getNonconstVectorBlock(const int k) = 0; 

  virtual RCP<const VectorBase<Scalar> >
  getVectorBlock(const int k) const = 0; 

};


template<class Scalar>
inline
RCP<Thyra::ProductVectorBase<Scalar> >
nonconstProductVectorBase(
  const RCP<Thyra::VectorBase<Scalar> > &v
  )
{
  return Teuchos::rcp_dynamic_cast<Thyra::ProductVectorBase<Scalar> >(v, true);
}


template<class Scalar>
inline
RCP<const Thyra::ProductVectorBase<Scalar> >
productVectorBase(
  const RCP<const Thyra::VectorBase<Scalar> > &v
  )
{
  return Teuchos::rcp_dynamic_cast<const Thyra::ProductVectorBase<Scalar> >(v, true);
}


} // namespace Thyra

#endif // THYRA_PRODUCT_VECTOR_BASE_HPP

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