raw_record_set.h

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/* Copyright (c) 2014, 2023, 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.
 
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   as designated in a particular file or component or in included license
   documentation.  The authors of MySQL hereby grant you an additional
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   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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#ifndef DD__RAW_RECORD_SET_INCLUDED
#define DD__RAW_RECORD_SET_INCLUDED
 
#include <stddef.h>
 
#include "sql/dd/impl/raw/raw_record.h"  // dd::Raw_record
 
struct TABLE;
 
namespace dd {
 
///////////////////////////////////////////////////////////////////////////
 
struct Raw_key;
 
///////////////////////////////////////////////////////////////////////////
 
class Raw_record_set : private Raw_record {
 public:
  ~Raw_record_set();
 
  Raw_record *current_record() { return m_current_record; }
 
  bool next(Raw_record *&r);
 
 private:
  // Note: The 'key' supplied will be freed by Raw_record_set
  Raw_record_set(TABLE *table, Raw_key *key)
      : Raw_record(table), m_key(key), m_current_record(nullptr) {}
 
  bool open();
 
  friend class Raw_table;
 
 private:
  // Raw_record_set owns m_key.
  Raw_key *m_key;
 
  Raw_record *m_current_record;
};
 
///////////////////////////////////////////////////////////////////////////
 
}  // namespace dd
 
#endif  // DD__RAW_RECORD_SET_INCLUDED