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DocumentRep.hpp

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/*==========================================================================
 * Copyright (c) 2001 Carnegie Mellon University.  All Rights Reserved.
 *
 * Use of the Lemur Toolkit for Language Modeling and Information Retrieval
 * is subject to the terms of the software license set forth in the LICENSE
 * file included with this software, and also available at
 * http://www.lemurproject.org/license.html
 *
 *==========================================================================
*/


#ifndef _DOCUMENTREP_HPP
#define _DOCUMENTREP_HPP

#include "DocInfoList.hpp"

//------------------------------------------------------------
//      Abstract Interface for Document Representation 
//------------------------------------------------------------


class DocumentRep {
public:
  DocumentRep(DOCID_T docID, int dl = 1) : id(docID), docLength(dl) {}
  virtual ~DocumentRep() {}

  virtual double termWeight(TERMID_T termID, const DocInfo *info) const = 0;

  virtual double scoreConstant() const = 0 ;
  void setDocLength(int len) { docLength = len;}

  int getDocLength() const { return docLength;}
  DOCID_T getID() const { return id;}
  
protected:  
  DOCID_T id;
  int docLength;
};
#endif /* _DOCUMENTREP_HPP */

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