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
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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; 

private:
  
  // Not defined and not to be called
  ProductVectorBase<Scalar>&
  operator=(const ProductVectorBase<Scalar>&);

};


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