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KeyfileDocListSegmentReader.hpp

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/*==========================================================================
 * Copyright (c) 2003 University of Massachusetts.  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
 *
 *==========================================================================
*/


//
// KeyfileDocListSegmentReader
//
// tds - 13 November 2003
//

#ifndef LEMUR_KEYFILEDOCLISTSEGMENTREADER_HPP
#define LEMUR_KEYFILEDOCLISTSEGMENTREADER_HPP

#include "InvFPDocList.hpp"
#include "ReadBuffer.hpp"
#include "File.hpp"

class KeyfileDocListSegmentReader {
private:
  File* _stream;
  ReadBuffer* _file;
  InvFPDocList* _top;
  int _segment;
  std::string _name;

public:
  KeyfileDocListSegmentReader( File* stream, std::string& baseName, 
                               int segment, int readBufferSize );
  ~KeyfileDocListSegmentReader();
  File* file();
  InvFPDocList* next();
  bool operator<( const KeyfileDocListSegmentReader& other ) const;

  const InvFPDocList* top() const;
  InvFPDocList* top();

  void pop();
  int segment() const;
  const std::string& name() const;
};

#endif // LEMUR_KEYFILEDOCLISTSEGMENTREADER_HPP

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