row.h

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// MySQL DB access module, for use by plugins and others
// For the module that implements interactive DB functionality see mod_db
 
#ifndef ROUTER_SRC_JIT_EXECUTOR_SRC_DATABASE_ROW_H_
#define ROUTER_SRC_JIT_EXECUTOR_SRC_DATABASE_ROW_H_
 
#include <map>
#include <set>
#include <vector>
 
#include "database/column.h"
#include "database/row.h"
#include "mysqlrouter/jit_executor_db_interface.h"
 
#include <mysql.h>
#include <memory>
#include <stdexcept>
 
namespace shcore {
namespace polyglot {
namespace database {
 
class bad_field : public std::invalid_argument {
 public:
  bad_field(const char *msg, uint32_t index)
      : std::invalid_argument(msg), field(index) {}
  uint32_t field;
};
 
class DbResult;
class Row : public jit_executor::db::IRow {
 public:
  Row(const Row &) = delete;
  void operator=(const Row &) = delete;
 
  uint32_t num_fields() const override;
 
  Type get_type(uint32_t index) const override;
  bool is_null(uint32_t index) const override;
  std::string get_as_string(uint32_t index) const override;
 
  std::string get_string(uint32_t index) const override;
  std::wstring get_wstring(uint32_t index) const override;
  int64_t get_int(uint32_t index) const override;
  uint64_t get_uint(uint32_t index) const override;
  float get_float(uint32_t index) const override;
  double get_double(uint32_t index) const override;
  std::pair<const char *, size_t> get_string_data(
      uint32_t index) const override;
  void get_raw_data(uint32_t index, const char **out_data,
                    size_t *out_size) const override;
  std::tuple<uint64_t, int> get_bit(uint32_t index) const override;
 
  inline void reset(MYSQL_ROW row, const unsigned long *lengths) {
    _row = row;
    _lengths = lengths;
  }
 
 private:
  friend class DbResult;
  explicit Row(DbResult *result);
  Row(DbResult *result, MYSQL_ROW row, const unsigned long *lengths);
 
  DbResult &_result;
  MYSQL_ROW _row;
  const unsigned long *_lengths;
  uint32_t m_num_fields;
};
 
}  // namespace database
}  // namespace polyglot
}  // namespace shcore
#endif  // ROUTER_SRC_JIT_EXECUTOR_SRC_DATABASE_ROW_H_