/* Copyright (c) 2014, 2021, Oracle and/or its affiliates.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License, version 2.0,
   as published by the Free Software Foundation.

   This program is also distributed with certain software (including
   but not limited to OpenSSL) that is licensed under separate terms,
   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
   permission to link the program and your derivative works with the
   separately licensed software that they have included with MySQL.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License, version 2.0, for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA */

#ifndef GCS_GROUP_IDENTIFIER_INCLUDED
#define GCS_GROUP_IDENTIFIER_INCLUDED

#include <string>

/**
  @class Gcs_group_identifier

  This represents the unique identification of a group. The group uniqueness is
  relevant since it is the destination of data. Thus, it cannot be ambiguous.
*/
class Gcs_group_identifier
{
public:
  /**
    Gcs_group_identifier constructor.

    @param[in] group_id the group identifier
  */

  explicit Gcs_group_identifier(const std::string &group_id);


  ~Gcs_group_identifier() {}


  /**
    @return the group identifier
  */

  const std::string &get_group_id() const;


  /**
    Redefinition of the operator less, to allow usage as key in maps.

    @param[in] other the Gcs_group_identifier to compare to

    @return the result of comparing internal representation with the
            compare operation from the string object
  */

  bool operator<(const Gcs_group_identifier &other) const;


  /**
    Redefinition of the operator equals, to allow usage in sets.

    @param[in] other the Gcs_group_identifier to compare to

    @return the result of comparing internal representation with the
            compare operation from the string object
  */

  bool operator==(const Gcs_group_identifier &other) const;


private:
  std::string group_id;
};

#endif // GCS_GROUP_IDENTIFIER_INCLUDED
