OperatorBase.h

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//-----------------------------------------------------------------------bl-
//--------------------------------------------------------------------------
//
// QUESO - a library to support the Quantification of Uncertainty
// for Estimation, Simulation and Optimization
//
// Copyright (C) 2008-2017 The PECOS Development Team
//
// This library is free software; you can redistribute it and/or
// modify it under the terms of the Version 2.1 GNU Lesser General
// Public License as published by the Free Software Foundation.
//
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
// Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License along with this library; if not, write to the Free Software
// Foundation, Inc. 51 Franklin Street, Fifth Floor,
// Boston, MA  02110-1301  USA
//
//-----------------------------------------------------------------------el-

#ifndef QUESO_OPERATOR_BASE_H
#define QUESO_OPERATOR_BASE_H

#include <string>
#include <vector>
#include <queso/SharedPtr.h>
#include <queso/FunctionBase.h>

namespace QUESO {

class FunctionOperatorBuilder;

class OperatorBase {
public:

  OperatorBase();

  virtual ~OperatorBase();


  virtual double get_eigenvalue(unsigned int i) const = 0;

  virtual double get_inverted_eigenvalue(unsigned int i) const = 0;

  virtual unsigned int get_num_converged() const = 0;


  virtual SharedPtr<FunctionBase>::Type
  inverse_kl_transform(std::vector<double>& xi, double alpha) const = 0;
};

}  // End namespace QUESO

#endif // QUESO_OPERATOR_BASE_H