Ifpack2_Details_OneLevelFactory_decl.hpp

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#ifndef IFPACK2_DETAILS_ONELEVELFACTORY_DECL_HPP
#define IFPACK2_DETAILS_ONELEVELFACTORY_DECL_HPP

#include "Ifpack2_ConfigDefs.hpp"
#include "Ifpack2_Preconditioner.hpp"
#include "Tpetra_RowMatrix.hpp"
#include <type_traits> // std::is_same

namespace Ifpack2 {
namespace Details {

template<class MatrixType>
class OneLevelFactory {
public:
  typedef typename MatrixType::scalar_type scalar_type;
  typedef typename MatrixType::local_ordinal_type local_ordinal_type;
  typedef typename MatrixType::global_ordinal_type global_ordinal_type;
  typedef typename MatrixType::node_type node_type;
  typedef ::Ifpack2::Preconditioner<scalar_type,
                                    local_ordinal_type,
                                    global_ordinal_type,
                                    node_type> prec_type;
  typedef ::Tpetra::RowMatrix<scalar_type,
                              local_ordinal_type,
                              global_ordinal_type,
                              node_type> row_matrix_type;

  static_assert (std::is_same<MatrixType, row_matrix_type>::value,
                 "Ifpack2::Details::OneLevelFactory: MatrixType must be a "
                 "Tpetra::RowMatrix specialization.");

  Teuchos::RCP<prec_type>
  create (const std::string& precType,
          const Teuchos::RCP<const row_matrix_type>& matrix) const;
};

} // namespace Details
} // namespace Ifpack2

#endif // IFPACK2_DETAILS_ONELEVELFACTORY_DECL_HPP