attribute.hpp

Go to the documentation of this file.

#pragma once
 
#ifdef FCB_WITH_JSON
 
#    include <fcb/generated/header_generated.h>
#    include <fcb/key.hpp>
 
#    include <nlohmann/json.hpp>
 
#    include <cstdint>
#    include <map>
#    include <string>
#    include <utility>
#    include <vector>
 
#    include <flatbuffers/flatbuffers.h>
 
namespace fcb {
 
using AttributeSchema = std::map<std::string, std::pair<std::uint16_t, ::ColumnType>>;
 
void add_attributes(AttributeSchema& schema, const nlohmann::ordered_json& attrs);
 
std::size_t attr_size(::ColumnType coltype, const nlohmann::ordered_json& colval);
 
std::vector<std::uint8_t> encode_attributes_with_schema(const nlohmann::ordered_json& attr,
                                                        const AttributeSchema& schema);
 
::flatbuffers::Offset<::flatbuffers::Vector<::flatbuffers::Offset<::Column>>>
to_columns(::flatbuffers::FlatBufferBuilder& fbb, const AttributeSchema& schema);
 
struct AttributeIndexEntry {
    std::uint16_t index;
    KeyValue value;
};
 
std::vector<AttributeIndexEntry>
attribute_to_index_entries(const nlohmann::ordered_json& attr, const AttributeSchema& schema,
                           const std::vector<std::string>& indexing_attr);
 
std::vector<AttributeIndexEntry>
cityfeature_to_index_entries(const nlohmann::ordered_json& city_feature,
                             const AttributeSchema& schema,
                             const std::vector<std::string>& indexing_attr);
 
}  // namespace fcb
 
#endif  // FCB_WITH_JSON