BundleWeight.hxx

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#ifndef CONICBUNDLE_BUNDLEWEIGHT_HXX
#define CONICBUNDLE_BUNDLEWEIGHT_HXX


#include "matrix.hxx"
#include "clock.hxx"
#include "CBSolver.hxx"
#include "MinorantPointer.hxx"
#include "Groundset.hxx"
#include "BundleModel.hxx"

namespace ConicBundle {



class BundleWeight : public CBout
{
public:
  BundleWeight(const CBout* cb=0,int incr=-1):CBout(cb,incr){}

  virtual ~BundleWeight(); //implemented in hk

  virtual void set_defaults()=0; 

  virtual void clear()=0;        
    
  virtual int init(CH_Matrix_Classes::Real aggr_dnormsqr,
                   Groundset* groundset,BundleModel* model)=0;
  
  virtual void set_next_weight(CH_Matrix_Classes::Real u)=0;

  virtual void set_minweight(CH_Matrix_Classes::Real umin) =0;

  virtual CH_Matrix_Classes::Real get_minweight() const =0;

  virtual void set_maxweight(CH_Matrix_Classes::Real umax) =0;
  
  virtual CH_Matrix_Classes::Real get_maxweight() const =0;
  
  virtual CH_Matrix_Classes::Real get_weight() const =0;
  
  virtual bool get_next_weight_set() const =0;
  
  virtual bool weight_changed() const =0;
  
  virtual int descent_update(CH_Matrix_Classes::Real newval,
                             CH_Matrix_Classes::Real oldval,
                             CH_Matrix_Classes::Real modelval,
                             const CH_Matrix_Classes::Matrix& y, 
                             const CH_Matrix_Classes::Matrix& newy,
                             CH_Matrix_Classes::Real aggr_dnormsqr,
                             BundleProxObject* Hp)=0;
  
  virtual int nullstep_update(CH_Matrix_Classes::Real newval,
                              CH_Matrix_Classes::Real oldval,
                              CH_Matrix_Classes::Real modelval,
                              const CH_Matrix_Classes::Matrix& y, 
                              const CH_Matrix_Classes::Matrix& newy,
                              MinorantPointer& new_minorant,
                              MinorantPointer& aggregate,
                              CH_Matrix_Classes::Real nullstep_bound,
                              CH_Matrix_Classes::Real aggr_dnormsqr,
                              BundleProxObject* Hp)=0;
  

  virtual int apply_modification(const GroundsetModification& gsmdf)=0;
 
};


}

#endif