Stokhos_OrthogPolyBasis.hpp

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// @HEADER
// *****************************************************************************
//                           Stokhos Package
//
// Copyright 2009 NTESS and the Stokhos contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef STOKHOS_ORTHOGPOLYBASIS_HPP
#define STOKHOS_ORTHOGPOLYBASIS_HPP

#include <ostream>
#include <string>
#include "Stokhos_Sparse3Tensor.hpp"
#include "Stokhos_Dense3Tensor.hpp"
#include "Stokhos_OneDOrthogPolyBasis.hpp"
#include "Teuchos_Array.hpp"
#include "Teuchos_ArrayView.hpp"
#include "Teuchos_SerialDenseMatrix.hpp"

namespace Stokhos {


  template <typename ordinal_type, typename value_type>
  class OrthogPolyBasis {
  public:

    OrthogPolyBasis() {};

    virtual ~OrthogPolyBasis() {};

    virtual ordinal_type order() const = 0;

    virtual ordinal_type dimension() const = 0;

    virtual ordinal_type size() const = 0;


    virtual const Teuchos::Array<value_type>& norm_squared() const = 0;

    virtual const value_type& norm_squared(ordinal_type i) const = 0;


    virtual 
    Teuchos::RCP< Stokhos::Sparse3Tensor<ordinal_type, value_type> > 
    computeTripleProductTensor() const = 0;

    virtual 
    Teuchos::RCP< Stokhos::Sparse3Tensor<ordinal_type, value_type> > 
    computeLinearTripleProductTensor() const = 0;

    virtual value_type evaluateZero(ordinal_type i) const = 0;


    virtual void evaluateBases(
      const Teuchos::ArrayView<const value_type>& point,
      Teuchos::Array<value_type>& basis_vals) const = 0;

    virtual void print(std::ostream& os) const = 0;

    virtual const std::string& getName() const = 0;

  private:

    // Prohibit copying
    OrthogPolyBasis(const OrthogPolyBasis&);

    // Prohibit Assignment
    OrthogPolyBasis& operator=(const OrthogPolyBasis& b);

  }; // class OrthogPolyBasis

  template <typename ordinal_type, typename value_type> 
  std::ostream& operator << (std::ostream& os, 
           const OrthogPolyBasis<ordinal_type, value_type>& b)
  {
    b.print(os);
    return os;
  }

} // Namespace Stokhos

#endif // STOKHOS_ORTHOGPOLYBASIS