Program Listing for File result_iteration_helper.hpp

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// Copyright 2020 Bjarne von Horn
//
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// modification, are permitted provided that the following conditions are met:
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// SPDX-License-Identifier: BSD-3-Clause

#ifndef WAREHOUSE_ROS_SQLITE__RESULT_ITERATION_HELPER_HPP_
#define WAREHOUSE_ROS_SQLITE__RESULT_ITERATION_HELPER_HPP_

#include <warehouse_ros/query_results.h>
#include <warehouse_ros_sqlite/utils.hpp>
#include <warehouse_ros_sqlite/warehouse_ros_sqlite_export.hpp>

#include <string>
#include <utility>
#include <vector>

namespace warehouse_ros_sqlite
{
class WAREHOUSE_ROS_SQLITE_EXPORT ResultIteratorHelper : public warehouse_ros::ResultIteratorHelper
{
  sqlite3_stmt_ptr stmt_;
  std::vector<std::pair<std::string, int>> metadata_cols_;
  void initMetadataCols();

public:
  ResultIteratorHelper() = default;
  explicit ResultIteratorHelper(sqlite3_stmt_ptr stmt)
  : stmt_(std::move(stmt))
  {
    initMetadataCols();
  }
  bool next() override;
  bool hasData() const override;
  warehouse_ros::Metadata::ConstPtr metadata() const override;
  std::string message() const override;
};

}  // namespace warehouse_ros_sqlite


#endif  // WAREHOUSE_ROS_SQLITE__RESULT_ITERATION_HELPER_HPP_