Uses of Package
org.apache.lucene.codecs

Packages that use org.apache.lucene.codecs

Package	Description
org.apache.lucene.bkdtree	This package contains a BKD spatial tree implementation for indexing lat/lon points and fast shape searching.
org.apache.lucene.codecs	Codecs API: API for customization of the encoding and structure of the index.
org.apache.lucene.codecs.asserting	Codec for testing that asserts various contracts of the codec apis.
org.apache.lucene.codecs.autoprefix	An experimental postings format that automatically indexes appropriate prefix terms for fast range and prefix queries.
org.apache.lucene.codecs.blockterms	Pluggable term index / block terms dictionary implementations.
org.apache.lucene.codecs.blocktree	BlockTree terms dictionary.
org.apache.lucene.codecs.blocktreeords	Same postings format as Lucene50, except the terms dictionary also supports ords, i.e.
org.apache.lucene.codecs.bloom	Codec PostingsFormat for fast access to low-frequency terms such as primary key fields.
org.apache.lucene.codecs.cheapbastard	Codec that unreasonably tries to use as little RAM as possible.
org.apache.lucene.codecs.compressing	StoredFieldsFormat that allows cross-document and cross-field compression of stored fields.
org.apache.lucene.codecs.compressing.dummy	Dummy CompressingCodec implementation used for testing.
org.apache.lucene.codecs.cranky	Codec for testing that throws random IOExceptions
org.apache.lucene.codecs.idversion	A primary-key postings format that associates a version (long) with each term and can provide fail-fast lookups by ID and version.
org.apache.lucene.codecs.lucene40	Lucene 4.0 file format.
org.apache.lucene.codecs.lucene41	Lucene 4.1 file format.
org.apache.lucene.codecs.lucene410	Lucene 4.10 file format.
org.apache.lucene.codecs.lucene42	Lucene 4.2 file format.
org.apache.lucene.codecs.lucene45	Lucene 4.5 file format.
org.apache.lucene.codecs.lucene46	Lucene 4.6 file format.
org.apache.lucene.codecs.lucene49	Lucene 4.9 file format.
org.apache.lucene.codecs.lucene50	Components from the Lucene 5.0 index format See org.apache.lucene.codecs.lucene53 for an overview of the index format.
org.apache.lucene.codecs.lucene53	Lucene 5.3 file format.
org.apache.lucene.codecs.memory	Term dictionary, DocValues or Postings formats that are read entirely into memory.
org.apache.lucene.codecs.mockrandom	Frankenstein codec for testing that pieces together random components.
org.apache.lucene.codecs.perfield	Postings format that can delegate to different formats per-field.
org.apache.lucene.codecs.ramonly	Codec for testing that never writes to disk.
org.apache.lucene.codecs.simpletext	Simpletext Codec: writes human readable postings.
org.apache.lucene.index	Code to maintain and access indices.
org.apache.lucene.rangetree	This package contains a numeric tree implementation for indexing long values enabling fast range searching.
org.apache.lucene.search.suggest.document	Support for document suggestion
org.apache.lucene.util	Some utility classes.

Classes in org.apache.lucene.codecs used by org.apache.lucene.bkdtree

Class and Description
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs

Class and Description
BlockTermState Holds all state required for PostingsReaderBase to produce a PostingsEnum without re-seeking the terms dict.
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.asserting

Class and Description
Codec Encodes/decodes an inverted index segment.
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
FilterCodec A codec that forwards all its method calls to another codec.
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.autoprefix

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.blockterms

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.
TermStats Holder for per-term statistics.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.blocktree

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.blocktreeords

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.bloom

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.cheapbastard

Class and Description
Codec Encodes/decodes an inverted index segment.
FilterCodec A codec that forwards all its method calls to another codec.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.compressing

Class and Description
Codec Encodes/decodes an inverted index segment.
FilterCodec A codec that forwards all its method calls to another codec.
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.compressing.dummy

Class and Description
Codec Encodes/decodes an inverted index segment.
FilterCodec A codec that forwards all its method calls to another codec.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.cranky

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesFormat Encodes/decodes per-document values.
FieldInfosFormat Encodes/decodes FieldInfos
FilterCodec A codec that forwards all its method calls to another codec.
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.idversion

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene40

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene41

Class and Description
BlockTermState Holds all state required for PostingsReaderBase to produce a PostingsEnum without re-seeking the terms dict.
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesFormat Encodes/decodes per-document values.
FieldInfosFormat Encodes/decodes FieldInfos
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene410

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene42

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene45

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene46

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesFormat Encodes/decodes per-document values.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene49

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene50

Class and Description
BlockTermState Holds all state required for PostingsReaderBase to produce a PostingsEnum without re-seeking the terms dict.
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
LiveDocsFormat Format for live/deleted documents
NormsFormat Encodes/decodes per-document score normalization values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.
PushPostingsWriterBase Extension of PostingsWriterBase, adding a push API for writing each element of the postings.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.lucene53

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesFormat Encodes/decodes per-document values.
FieldInfosFormat Encodes/decodes FieldInfos
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
TermVectorsFormat Controls the format of term vectors

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.memory

Class and Description
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.
PostingsReaderBase The core terms dictionaries (BlockTermsReader, BlockTreeTermsReader) interact with a single instance of this class to manage creation of PostingsEnum and PostingsEnum instances.
PostingsWriterBase Class that plugs into term dictionaries, such as BlockTreeTermsWriter, and handles writing postings.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.mockrandom

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.perfield

Class and Description
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.ramonly

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.codecs.simpletext

Class and Description
Codec Encodes/decodes an inverted index segment.
CompoundFormat Encodes/decodes compound files
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldInfosFormat Encodes/decodes FieldInfos
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
LiveDocsFormat Format for live/deleted documents
NormsConsumer Abstract API that consumes normalization values.
NormsFormat Encodes/decodes per-document score normalization values.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
SegmentInfoFormat Expert: Controls the format of the SegmentInfo (segment metadata file).
StoredFieldsFormat Controls the format of stored fields
StoredFieldsReader Codec API for reading stored fields.
StoredFieldsWriter Codec API for writing stored fields: For every document, StoredFieldsWriter.startDocument() is called, informing the Codec that a new document has started.
TermVectorsFormat Controls the format of term vectors
TermVectorsReader Codec API for reading term vectors:
TermVectorsWriter Codec API for writing term vectors: For every document, TermVectorsWriter.startDocument(int) is called, informing the Codec how many fields will be written.

Classes in org.apache.lucene.codecs used by org.apache.lucene.index

Class and Description
Codec Encodes/decodes an inverted index segment.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
FilterCodec A codec that forwards all its method calls to another codec.
NormsProducer Abstract API that produces field normalization values
PostingsFormat Encodes/decodes terms, postings, and proximity data.
StoredFieldsReader Codec API for reading stored fields.
TermVectorsReader Codec API for reading term vectors:

Classes in org.apache.lucene.codecs used by org.apache.lucene.rangetree

Class and Description
DocValuesConsumer Abstract API that consumes numeric, binary and sorted docvalues.
DocValuesFormat Encodes/decodes per-document values.
DocValuesProducer Abstract API that produces numeric, binary, sorted, sortedset, and sortednumeric docvalues.

Classes in org.apache.lucene.codecs used by org.apache.lucene.search.suggest.document

Class and Description
FieldsConsumer Abstract API that consumes terms, doc, freq, prox, offset and payloads postings.
FieldsProducer Abstract API that produces terms, doc, freq, prox, offset and payloads postings.
PostingsFormat Encodes/decodes terms, postings, and proximity data.

Classes in org.apache.lucene.codecs used by org.apache.lucene.util

Class and Description
Codec Encodes/decodes an inverted index segment.
DocValuesFormat Encodes/decodes per-document values.
PostingsFormat Encodes/decodes terms, postings, and proximity data.