#ifndef __fpa__Base__Functors__VertexCostFunctionBase__h__
#define __fpa__Base__Functors__VertexCostFunctionBase__h__

#include <itkObject.h>
#include <itkObjectFactory.h>

namespace fpa
{
  namespace Base
  {
    namespace Functors
    {
      /**
       */
      template< class _TVertex, class _TOutput >
      class VertexCostFunctionBase
        : public itk::Object
      {
      public:
        typedef VertexCostFunctionBase          Self;
        typedef itk::Object                     Superclass;
        typedef itk::SmartPointer< Self >       Pointer;
        typedef itk::SmartPointer< const Self > ConstPointer;

        typedef _TVertex TVertex;
        typedef _TOutput TOutput;

      public:
        itkTypeMacro( VertexCostFunctionBase, itk::Object );

      public:
        virtual TOutput Evaluate( const TVertex& a, const TVertex& b ) const = 0;

      protected:
        VertexCostFunctionBase( )
          : Superclass( )
          { }
        virtual ~VertexCostFunctionBase( )
          { }

      private:
        // Purposely not defined
        VertexCostFunctionBase( const Self& other );
        Self& operator=( const Self& other );
      };

    } // ecapseman

  } // ecapseman

} // ecapseman

#endif // __fpa__Base__Functors__VertexCostFunctionBase__h__

// eof - $RCSfile$