//
//  Copyright (C) 2003-2006 Rational Discovery LLC
//
//  @@ All Rights Reserved @@
//  This file is part of the RDKit.
//  The contents are covered by the terms of the BSD license
//  which is included in the file license.txt, found at the root
//  of the RDKit source tree.
//
#include <RDGeneral/export.h>
#ifndef __RD_CATALOGENTRY_H__
#define __RD_CATALOGENTRY_H__

#include <iostream>
#include <string>

namespace RDCatalog {

//! Abstract base class to be used to represent an entry in a Catalog
class RDKIT_CATALOGS_EXPORT CatalogEntry {
 public:
  virtual ~CatalogEntry() = 0;

  //! sets our bit Id
  void setBitId(int bid) { d_bitId = bid; };

  //! returns our bit Id
  int getBitId() const { return d_bitId; };

  //! returns a text description of this entry
  virtual std::string getDescription() const = 0;

  //! serializes (pickles) to a stream
  virtual void toStream(std::ostream &ss) const = 0;
  //! returns a string with a serialized (pickled) representation
  virtual std::string Serialize() const = 0;
  //! initializes from a stream pickle
  virtual void initFromStream(std::istream &ss) = 0;
  //! initializes from a string pickle
  virtual void initFromString(const std::string &text) = 0;

 private:
  int d_bitId;  //!< our bit Id. This needs to be signed so that we can mark
                // uninitialized entries.
};
}  // namespace RDCatalog

#endif
