diff options
Diffstat (limited to 'src/mongo/db/index/expression_keys_private.h')
| -rw-r--r-- | src/mongo/db/index/expression_keys_private.h | 163 |
1 files changed, 81 insertions, 82 deletions
diff --git a/src/mongo/db/index/expression_keys_private.h b/src/mongo/db/index/expression_keys_private.h index 6e3fb1ea9a0..9aba295b579 100644 --- a/src/mongo/db/index/expression_keys_private.h +++ b/src/mongo/db/index/expression_keys_private.h @@ -36,95 +36,94 @@ namespace mongo { - struct TwoDIndexingParams; - struct S2IndexingParams; +struct TwoDIndexingParams; +struct S2IndexingParams; - namespace fts { +namespace fts { - class FTSSpec; +class FTSSpec; - } // namespace fts +} // namespace fts + +/** + * Do not use this class or any of its methods directly. The key generation of btree-indexed + * expression indices is kept outside of the access method for testing and for upgrade + * compatibility checking. + */ +class ExpressionKeysPrivate { +public: + // + // 2d + // + + static void get2DKeys(const BSONObj& obj, + const TwoDIndexingParams& params, + BSONObjSet* keys, + std::vector<BSONObj>* locs); + + // + // FTS + // + + static void getFTSKeys(const BSONObj& obj, const fts::FTSSpec& ftsSpec, BSONObjSet* keys); + + // + // Hash + // + + /** + * Generates keys for hash access method. + */ + static void getHashKeys(const BSONObj& obj, + const std::string& hashedField, + HashSeed seed, + int hashVersion, + bool isSparse, + BSONObjSet* keys); /** - * Do not use this class or any of its methods directly. The key generation of btree-indexed - * expression indices is kept outside of the access method for testing and for upgrade - * compatibility checking. + * Hashing function used by both getHashKeys and the cursors we create. + * Exposed for testing in dbtests/namespacetests.cpp and + * so mongo/db/index_legacy.cpp can use it. */ - class ExpressionKeysPrivate { - public: - - // - // 2d - // - - static void get2DKeys(const BSONObj &obj, - const TwoDIndexingParams& params, - BSONObjSet* keys, - std::vector<BSONObj>* locs); - - // - // FTS - // - - static void getFTSKeys(const BSONObj &obj, const fts::FTSSpec& ftsSpec, BSONObjSet* keys); - - // - // Hash - // - - /** - * Generates keys for hash access method. - */ - static void getHashKeys(const BSONObj& obj, - const std::string& hashedField, - HashSeed seed, - int hashVersion, - bool isSparse, + static long long int makeSingleHashKey(const BSONElement& e, HashSeed seed, int v); + + // + // Haystack + // + + /** + * Generates keys for haystack access method. + */ + static void getHaystackKeys(const BSONObj& obj, + const std::string& geoField, + const std::vector<std::string>& otherFields, + double bucketSize, BSONObjSet* keys); - /** - * Hashing function used by both getHashKeys and the cursors we create. - * Exposed for testing in dbtests/namespacetests.cpp and - * so mongo/db/index_legacy.cpp can use it. - */ - static long long int makeSingleHashKey(const BSONElement& e, HashSeed seed, int v); - - // - // Haystack - // - - /** - * Generates keys for haystack access method. - */ - static void getHaystackKeys(const BSONObj& obj, - const std::string& geoField, - const std::vector<std::string>& otherFields, - double bucketSize, - BSONObjSet* keys); - - /** - * Returns a hash of a BSON element. - * Used by getHaystackKeys and HaystackAccessMethod::searchCommand. - */ - static int hashHaystackElement(const BSONElement& e, double bucketSize); - - /** - * Joins two strings using underscore as separator. - * Used by getHaystackKeys and HaystackAccessMethod::searchCommand. - */ - static std::string makeHaystackString(int hashedX, int hashedY); - - // - // S2 - // - - /** - * Generates keys for S2 access method. - */ - static void getS2Keys(const BSONObj& obj, - const BSONObj& keyPattern, - const S2IndexingParams& params, - BSONObjSet* keys); - }; + /** + * Returns a hash of a BSON element. + * Used by getHaystackKeys and HaystackAccessMethod::searchCommand. + */ + static int hashHaystackElement(const BSONElement& e, double bucketSize); + + /** + * Joins two strings using underscore as separator. + * Used by getHaystackKeys and HaystackAccessMethod::searchCommand. + */ + static std::string makeHaystackString(int hashedX, int hashedY); + + // + // S2 + // + + /** + * Generates keys for S2 access method. + */ + static void getS2Keys(const BSONObj& obj, + const BSONObj& keyPattern, + const S2IndexingParams& params, + BSONObjSet* keys); +}; } // namespace mongo |