SquaredLinearFunction.h

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#ifndef _OCRABASE_SQUARED_LINEAR_FUNCTION_H_
#define _OCRABASE_SQUARED_LINEAR_FUNCTION_H_

// includes
#include "ocra/optim/LinearFunction.h"
#include "ocra/optim/QuadraticFunction.h"
#include <sstream>

namespace ocra
{
  class SquaredLinearFunction : public QuadraticFunction
  {
    // ------------------------ structures --------------------------------------
  public:
    typedef QuadraticFunction  functionType_t;     //< alias on the type of the mother class. Needed to duplicate the function tree.

    // ------------------------ constructors ------------------------------------
  private:
    SquaredLinearFunction(const SquaredLinearFunction&);
    SquaredLinearFunction& operator= (const SquaredLinearFunction&);
  protected:
  public:
    SquaredLinearFunction(LinearFunction* f);
    ~SquaredLinearFunction();

    void changeWeight(const VectorXd& weight);
    //void setWeight(const VectorXd& weight);

    LinearFunction& getFunction();
    const LinearFunction& getFunction() const;

    // ------------------------ protected methods -------------------------------
  protected:
    void updateHessian() const;

    void updateq() const;
    void updater() const;

    void doUpdateInputSizeBegin();

    void onResize(int);

    // ------------------------ protected members -------------------------------
  protected:
    LinearFunction* _f;
    VectorXd _weight;
  };


  void testSquaredLinearFunction();
}

#endif  //_OCRABASE_SQUARED_LINEAR_FUNCTION_H_

// cmake:sourcegroup=Function