AnasaziOperator.hpp

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// @HEADER
// *****************************************************************************
//                 Anasazi: Block Eigensolvers Package
//
// Copyright 2004 NTESS and the Anasazi contributors.
// SPDX-License-Identifier: BSD-3-Clause
// *****************************************************************************
// @HEADER

#ifndef ANASAZI_OPERATOR_HPP
#define ANASAZI_OPERATOR_HPP

#include "AnasaziConfigDefs.hpp"
#include "AnasaziOperatorTraits.hpp"
#include "AnasaziMultiVec.hpp"
#include "Teuchos_ScalarTraits.hpp"


namespace Anasazi {
  
  template <class ScalarType>
  class Operator {
  public:

    Operator() {};
    
    virtual ~Operator() {};
    

    
    virtual void Apply ( const MultiVec<ScalarType>& x, MultiVec<ScalarType>& y ) const = 0;

  };
  
  //
  // Implementation of the Anasazi::OperatorTraits for Anasazi::Operator 
  //                                               and Anasazi::MultiVec.
  //
  
  template <class ScalarType> 
  class OperatorTraits < ScalarType, MultiVec<ScalarType>, Operator<ScalarType> > 
  {
  public:
  


    static void Apply ( const Operator<ScalarType>& Op, 
            const MultiVec<ScalarType>& x, 
            MultiVec<ScalarType>& y )
    { Op.Apply( x, y ); }

    
  };
  
} // end of Anasazi namespace

#endif

// end of file AnasaziOperator.hpp