IpInexactSearchDirCalc.hpp

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// Copyright (C) 2008 International Business Machines and others.
// All Rights Reserved.
// This code is published under the Eclipse Public License.
//
// $Id: IpInexactSearchDirCalc.hpp 1861 2010-12-21 21:34:47Z andreasw $
//
// Authors:  Andreas Waechter            IBM    2008-08-31

#ifndef __IPINEXACTSEARCHDIRCALC_HPP__
#define __IPINEXACTSEARCHDIRCALC_HPP__

#include "IpSearchDirCalculator.hpp"
#include "IpInexactCq.hpp"
#include "IpInexactNormalStepCalc.hpp"
#include "IpInexactPDSolver.hpp"

namespace Ipopt
{
  class InexactSearchDirCalculator : public SearchDirectionCalculator
  {
  public:
    InexactSearchDirCalculator(SmartPtr<InexactNormalStepCalculator> normal_step_calculator,
                               SmartPtr<InexactPDSolver> inexact_pd_solver);

    virtual ~InexactSearchDirCalculator();

    virtual bool InitializeImpl(const OptionsList& options,
                                const std::string& prefix);

    virtual bool ComputeSearchDirection();

    static void RegisterOptions(SmartPtr<RegisteredOptions> roptions);

  private:
    InexactSearchDirCalculator();

    InexactSearchDirCalculator(const InexactSearchDirCalculator&);

    void operator=(const InexactSearchDirCalculator&);

    InexactData& InexData()
    {
      InexactData& inexact_data =
        static_cast<InexactData&>(IpData().AdditionalData());
      DBG_ASSERT(dynamic_cast<InexactData*>(&IpData().AdditionalData()));
      return inexact_data;
    }

    InexactCq& InexCq()
    {
      InexactCq& inexact_cq =
        static_cast<InexactCq&>(IpCq().AdditionalCq());
      DBG_ASSERT(dynamic_cast<InexactCq*>(&IpCq().AdditionalCq()));
      return inexact_cq;
    }

    Number local_inf_Ac_tol_;

    SmartPtr<InexactNormalStepCalculator> normal_step_calculator_;
    SmartPtr<InexactPDSolver> inexact_pd_solver_;

    enum DecompositionTypeEnum
    {
      ALWAYS=0,
      ADAPTIVE,
      SWITCH_ONCE
    };
    DecompositionTypeEnum decomposition_type_;
  };

} // namespace Ipopt

#endif