/* Directoryfile.h
 *
 * This is the header file for the  Directoryfile data type.
 *
 */

#ifndef DIRECTORYFILE_H
#define DIRECTORYFILE_H

#include <string>
using namespace std;

// This is the  Directoryfile class
// It represents a  Directoryfile entry from the input file.


class  Directoryfile {
 private:
  int key;         			// the key
 

  int key_length;
  


// set the record size, which is the sum of the lengths
// of the student number field, the name field, and 
// extra end-of-line characters 
  int recsize;
 
 public:  

  // This constructor sets up the Student object.
  Directoryfile();
  // This is the destructor for the class.
  virtual ~ Directoryfile();

  //key accessors
  int getKey() const;
  void setKey(int);





  // seek to the appropriate position for reading
  void InputPositioningByRRN(int RRN, istream&);

  // seek to the appropriate position for writing
  void OutputPositioningByRRN(int RRN, ostream&);

  // read a bucket in the bucket file
  void readDirectoryfile(int, istream&); 
 


};

#endif