Query *OEFYJOH IndexWriter *OEFYBDDFTT IndexReader 4UPSBHFBDDFTT Directory, DirectoryReader %PDVNFOUSFQSFTFOUBUJPO Document, Field $PEFDT JOEFY fi MFGPSNBUT Codec, PostingsFormat, DocValuesFormat, StoredFieldsFormat, FieldInfosFormat, SegmentInfoFormat, LiveDocsFormat, PointsFormat, … "MHPSJUINT%BUBTUSVDUVSFT LZ4, LevenshteinAutomata, FST, BKDReader, BKDWriter, PackedInts, FixedBitSet, PriorityQueue, …