EvaluationMatrix.hpp

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/*
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   Copyright (C) 2004, 2005, 2007 EPFL, Politecnico di Milano, INRIA
   Copyright (C) 2010 EPFL, Politecnico di Milano, Emory UNiversity

   This file is part of the LifeV library

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   it under the terms of the GNU Lesser General Public License as published by
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   License along with this library; if not, see <http://www.gnu.org/licenses/>


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//@HEADER

/*!
 *   @file
     @brief This file contains the definition of the EvaluationMatrix class.

     @date 06/2011
     @author Samuel Quinodoz <samuel.quinodoz@epfl.ch>
 */
#ifndef EVALUATION_MATRIX_HPP
#define EVALUATION_MATRIX_HPP

#include <lifev/core/LifeV.hpp>

#include <lifev/core/array/MatrixSmall.hpp>

#include <lifev/eta/fem/ETCurrentFE.hpp>
#include <lifev/eta/fem/ETCurrentFlag.hpp>
#include <lifev/core/fem/QuadratureRule.hpp>

#include <lifev/eta/expression/ExpressionMatrix.hpp>


namespace LifeV
{

namespace ExpressionAssembly
{

//! Evaluation for a matricial constant
/*!
  @author Samuel Quinodoz <samuel.quinodoz@epfl.ch>

  This class aims at representing a matricial constant in the assembly

  This class is an Evaluation class, and therefore, has all the methods
  required to work within the Evaluation trees.
 */
template <UInt MatrixDim1, UInt MatrixDim2>
class EvaluationMatrix
{
public:

    //! @name Public Types
    //@{

    //! Type of the value returned by this class
    typedef MatrixSmall<MatrixDim1, MatrixDim2> return_Type;

    //@}


    //! @name Static constants
    //@{

    //! Flag for the global current FE
    const static flag_Type S_globalUpdateFlag;

    //! Flag for the test current FE
    const static flag_Type S_testUpdateFlag;

    //! Flag for the solution current FE
    const static flag_Type S_solutionUpdateFlag;

    //@}


    //! @name Constructors, destructor
    //@{

    //! Empty constructor
    EvaluationMatrix()
    {}

    //! Copy constructor
    EvaluationMatrix (const EvaluationMatrix<MatrixDim1, MatrixDim2>& evaluation)
        : M_value (evaluation.M_value)
    {}

    //! Expression-based constructor
    explicit EvaluationMatrix (const ExpressionMatrix<MatrixDim1, MatrixDim2>& expression)
        : M_value (expression.value() )
    {}

    //! Destructor
    ~EvaluationMatrix()
    {}

    //@}


    //! @name Methods
    //@{

    //! Do nothing internal update
    void update (const UInt& /*iElement*/)
    {}

    //! Display method
    static void display (std::ostream& out = std::cout)
    {
        out << "matrix[" << MatrixDim1 << "][" << MatrixDim2 << "]";
    }

    //@}


    //! @name Set Methods
    //@{

    //! Do nothing setter for the global current FE
    template< typename CFEType >
    void setGlobalCFE (const CFEType* /*globalCFE*/)
    {}

    //! Do nothing setter for the test current FE
    template< typename CFEType >
    void setTestCFE (const CFEType* /*testCFE*/)
    {}

    //! Do nothing setter for the solution current FE
    template< typename CFEType >
    void setSolutionCFE (const CFEType* /*solutionCFE*/)
    {}

    //! Setter for the quadrature rule
    void setQuadrature (const QuadratureRule&)
    {}

    //@}


    //! @name Get Methods
    //@{

    //! Getter for a value
    return_Type value_q (const UInt& /*q*/) const
    {
        return M_value;
    }

    //! Getter for the value for a vector
    return_Type value_qi (const UInt& /*q*/, const UInt& /*i*/) const
    {
        return M_value;
    }

    //! Getter for the value for a matrix
    return_Type value_qij (const UInt& /*q*/, const UInt& /*i*/, const UInt& /*j*/) const
    {
        return M_value;
    }

    //@}

private:

    // Storage
    MatrixSmall<MatrixDim1, MatrixDim2> M_value;
};


template<UInt MatrixDim1, UInt MatrixDim2>
const flag_Type EvaluationMatrix<MatrixDim1, MatrixDim2>::S_globalUpdateFlag = ET_UPDATE_NONE;

template<UInt MatrixDim1, UInt MatrixDim2>
const flag_Type EvaluationMatrix<MatrixDim1, MatrixDim2>::S_testUpdateFlag = ET_UPDATE_NONE;

template<UInt MatrixDim1, UInt MatrixDim2>
const flag_Type EvaluationMatrix<MatrixDim1, MatrixDim2>::S_solutionUpdateFlag = ET_UPDATE_NONE;


} // Namespace ExpressionAssembly

} // Namespace LifeV
#endif