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Repository.hpp

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/*==========================================================================
 * Copyright (c) 2004 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
 *
 *==========================================================================
*/


//
// Repository
//
// 21 May 2004 -- tds
//

#ifndef INDRI_REPOSITORY_HPP
#define INDRI_REPOSITORY_HPP

#include "indri/Parameters.hpp"
#include "indri/Transformation.hpp"
#include <string>

class Repository {
public:
  struct Field {
    std::string name;
    std::string parserName;
    bool numeric;
  };

private:
  class IndriIndex* _index;
  class CompressedCollection* _collection;
  Parameters _parameters;
  std::vector<Transformation*> _transformations;
  std::vector<Field> _fields;

  std::string _path;
  bool _readOnly;

  void _buildFields();
  void _buildChain();
  void _buildTransientChain( Parameters& parameters );

  void _copyParameters( Parameters& options );

public:
  Repository() {
    _index = 0;
    _collection = 0;
    _readOnly = false;
  }

  ~Repository() {
    close();
  }
  void addDocument( ParsedDocument* document );
  const std::vector<Field>& fields() const;
  std::vector<std::string> tags() const;
  std::string processTerm( const std::string& term );
  class CompressedCollection* collection();
  class IndriIndex* index();
  void create( const std::string& path, Parameters* options = 0 );
  void open( const std::string& path, Parameters* options = 0 );
  void openRead( const std::string& path, Parameters* options = 0 );
  static bool exists( const std::string& path );
  void close();
};

#endif // INDRI_REPOSITORY_HPP

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