/*************************************************************************/
/* File: ins_course_pref.h			Author: B. De Hamer      */
/*                                                                       */
/* InsCoursePref class holds one course preference for an instructor     */
/* and the weight of that preference.                                    */
/*************************************************************************/
#ifndef INS_COURSE_PREF
#define INS_COURSE_PREF

#include "node.h"
#include "course_id.h"

typedef int CoursePrefLevel ;

class InsCoursePref : public Node 
{
   public:

      InsCoursePref () ;
      // Construct a new InsCoursePref

      InsCoursePref (CourseID&, int) ;
      // Construct a new preference with the given class and weight

      InsCoursePref (char*, int, int) ;
      // Construct a course preference for the given class name/number
      // and weight

      InsCoursePref (const InsCoursePref&) ;
      // Construct a new InsCoursePref from an existing one

      ~InsCoursePref () ;
      // Destruct the InsCoursePref

      void operator= (const InsCoursePref&) ;
      // Assign this preference the value of the argument

      Boolean operator== (const InsCoursePref&) ;
      // Compres this preference to the argument
      //  Reutrns true if they are equal
      //  Returns false if they are not equal

      void print () const ;
      // Print the course preference

      Node* copy () const ;
      // Return a pointer to an exact copy of this object
      
      CourseID GetID () const ;
      // Returns the course if of the current preference

      void SetWeight (int) ;
      // Set the weight of this preference

      int GetWeight () const ;
      // Returns the weight of this preference

   protected:

      CourseID course_id ;		// Course name
      CoursePrefLevel weight;		// Weight of preference
} ;

#endif