#ifndef ABSFACT_H
#define ABSFACT_H
///////////////////////////////////////////////////////////////
//  absFact.h  --   creates Neural Network layers            //
//                  using services of concrete factories     //
//                                                           //
//  Jim Fawcett, CSE776 - Design Patterns, Summer 2004       //
///////////////////////////////////////////////////////////////

class abstractLayer;

class absNNfact {

  public:
    enum LayerType { input, hidden, output };
    static  absNNfact* CreateFactory(LayerType lt);
    virtual abstractLayer* createLayer() = 0;
    virtual void PopulateLayer(int n) = 0;
};

class abstractLayer {

  public:
    virtual void addNode()  = 0;
    virtual void useLayer() = 0;
};

#endif