SOCOracle.hxx

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#ifndef CONICBUNDLE_SOCORACLE_HXX
#define CONICBUNDLE_SOCORACLE_HXX

//------------------------------------------------------------

#include "MatrixCBSolver.hxx"
#include "matrix.hxx"

//------------------------------------------------------------


namespace ConicBundle {



  class SOCPrimalExtender: public PrimalExtender
  {
  public:
    virtual ~SOCPrimalExtender(){}

    virtual int extend(PrimalData&)=0;

    virtual int extend_SOC(CH_Matrix_Classes::Matrix& /* vectors */ )=0;
  };


  class SOCOracle: public ModifiableOracleObject 
  {
  public:

    virtual Minorant* generate_minorant(const CH_Matrix_Classes::Matrix& SOCvec)=0;

    virtual int extract_SOCvector(CH_Matrix_Classes::Matrix& SOCvec, const Minorant* SOCminorant)=0;
    
    virtual int projection(
                           CH_Matrix_Classes::Matrix& offset,
                           CH_Matrix_Classes::Matrix& coeffs,
                           const CH_Matrix_Classes::Matrix& bar_P,
                           const CH_Matrix_Classes::Indexmatrix* index_subset=0) =0;
    
    virtual
    int
    evaluate
    (
     const CH_Matrix_Classes::Matrix& current_point,
     const CH_Matrix_Classes::Real relprec,
     CH_Matrix_Classes::Real& SOC_value,
     CH_Matrix_Classes::Matrix& SOC_vector,
     SOCPrimalExtender*& primal_extender 
     )
     = 0;

    virtual
    int
    evaluate_projection
    (
     const CH_Matrix_Classes::Matrix& current_point,
     const CH_Matrix_Classes::Matrix& P, 
     const CH_Matrix_Classes::Real relprec,
     CH_Matrix_Classes::Real& projected_SOC_value
     )
     = 0;


    virtual 
    int 
    apply_modification
    (
     const OracleModification& /* oracle_modification */,
     const CH_Matrix_Classes::Matrix* /* new_center */,
     const CH_Matrix_Classes::Matrix* /* old_center */,
     bool& /* discard_objective_in_center */,
     bool& /* discard_model */, 
     bool& /* discard_aggregates */,
     MinorantExtender*& /* minorant_extender */
     )
    {return 1;}



    virtual
    bool
    check_correctness() const
    {return true;}
      

  };



  class SOCBundleParameters: public BundleParameters
  {
  public:
   //int max_model_size;       //inherited   
   //int max_bundle_size;       //inherited

       
    //currently no further items needed

  };


}
#endif