mirror of https://gitee.com/bigwinds/arangodb
147 lines
4.9 KiB
C++
147 lines
4.9 KiB
C++
////////////////////////////////////////////////////////////////////////////////
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/// DISCLAIMER
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///
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/// Copyright 2014-2016 ArangoDB GmbH, Cologne, Germany
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/// Copyright 2004-2014 triAGENS GmbH, Cologne, Germany
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///
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/// Licensed under the Apache License, Version 2.0 (the "License");
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/// you may not use this file except in compliance with the License.
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/// You may obtain a copy of the License at
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///
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/// http://www.apache.org/licenses/LICENSE-2.0
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///
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/// Unless required by applicable law or agreed to in writing, software
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/// distributed under the License is distributed on an "AS IS" BASIS,
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/// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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/// See the License for the specific language governing permissions and
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/// limitations under the License.
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///
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/// Copyright holder is ArangoDB GmbH, Cologne, Germany
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///
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/// @author Dr. Frank Celler
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////////////////////////////////////////////////////////////////////////////////
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#ifndef ARANGOD_INDEXES_GEO_INDEX2_H
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#define ARANGOD_INDEXES_GEO_INDEX2_H 1
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#include "Basics/Common.h"
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#include "GeoIndex/GeoIndex.h"
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#include "Indexes/Index.h"
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#include "VocBase/vocbase.h"
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#include "VocBase/voc-types.h"
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#include <velocypack/Builder.h>
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#include <velocypack/velocypack-aliases.h>
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namespace arangodb {
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class GeoIndex2 final : public Index {
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public:
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GeoIndex2() = delete;
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GeoIndex2(TRI_idx_iid_t, struct TRI_document_collection_t*,
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std::vector<std::vector<arangodb::basics::AttributeName>> const&,
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std::vector<std::string> const&, bool);
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GeoIndex2(TRI_idx_iid_t, struct TRI_document_collection_t*,
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std::vector<std::vector<arangodb::basics::AttributeName>> const&,
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std::vector<std::vector<std::string>> const&);
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~GeoIndex2();
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public:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief geo index variants
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//////////////////////////////////////////////////////////////////////////////
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enum IndexVariant {
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INDEX_GEO_NONE = 0,
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INDEX_GEO_INDIVIDUAL_LAT_LON,
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INDEX_GEO_COMBINED_LAT_LON,
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INDEX_GEO_COMBINED_LON_LAT
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};
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public:
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IndexType type() const override final {
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if (_variant == INDEX_GEO_COMBINED_LAT_LON ||
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_variant == INDEX_GEO_COMBINED_LON_LAT) {
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return TRI_IDX_TYPE_GEO1_INDEX;
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}
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return TRI_IDX_TYPE_GEO2_INDEX;
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}
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bool isSorted() const override final { return false; }
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bool hasSelectivityEstimate() const override final { return false; }
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bool dumpFields() const override final { return true; }
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size_t memory() const override final;
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void toVelocyPack(VPackBuilder&, bool) const override final;
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// Uses default toVelocyPackFigures
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int insert(arangodb::Transaction*, struct TRI_doc_mptr_t const*,
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bool) override final;
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int remove(arangodb::Transaction*, struct TRI_doc_mptr_t const*,
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bool) override final;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief looks up all points within a given radius
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//////////////////////////////////////////////////////////////////////////////
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GeoCoordinates* withinQuery(arangodb::Transaction*, double, double,
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double) const;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief looks up the nearest points
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//////////////////////////////////////////////////////////////////////////////
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GeoCoordinates* nearQuery(arangodb::Transaction*, double, double,
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size_t) const;
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bool isSame(std::vector<std::string> location, bool geoJson) const {
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return (!_location.empty() && _location == location && _geoJson == geoJson);
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}
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bool isSame(std::vector<std::string> latitude,
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std::vector<std::string> longitude) const {
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return (!_latitude.empty() && !_longitude.empty() &&
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_latitude == latitude && _longitude == longitude);
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}
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private:
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//////////////////////////////////////////////////////////////////////////////
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/// @brief attribute paths
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//////////////////////////////////////////////////////////////////////////////
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std::vector<std::string> _location;
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std::vector<std::string> _latitude;
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std::vector<std::string> _longitude;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief the geo index variant (geo1 or geo2)
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//////////////////////////////////////////////////////////////////////////////
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IndexVariant const _variant;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief whether the index is a geoJson index (latitude / longitude
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/// reversed)
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//////////////////////////////////////////////////////////////////////////////
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bool _geoJson;
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//////////////////////////////////////////////////////////////////////////////
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/// @brief the actual geo index
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//////////////////////////////////////////////////////////////////////////////
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GeoIndex* _geoIndex;
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};
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}
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#endif
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