Uses of Class
org.apache.lucene.store.Directory

Packages that use Directory

Package	Description
org.apache.lucene.analysis.hunspell	Stemming TokenFilter using a Java implementation of the Hunspell stemming algorithm.
org.apache.lucene.classification.utils	Utilities for evaluation, data preparation, etc.
org.apache.lucene.codecs	Codecs API: API for customization of the encoding and structure of the index.
org.apache.lucene.codecs.compressing	StoredFieldsFormat that allows cross-document and cross-field compression of stored fields.
org.apache.lucene.codecs.lucene50	Components from the Lucene 5.0 index format See org.apache.lucene.codecs.lucene80 for an overview of the index format.
org.apache.lucene.codecs.lucene60	Components from the Lucene 6.0 index format.
org.apache.lucene.codecs.lucene70	Components from the Lucene 7.0 index format.
org.apache.lucene.codecs.lucene86	Lucene 8.6 file format.
org.apache.lucene.codecs.lucene87	Lucene 8.7 file format.
org.apache.lucene.codecs.simpletext	Simpletext Codec: writes human readable postings.
org.apache.lucene.index	Code to maintain and access indices.
org.apache.lucene.misc	Miscellaneous index tools.
org.apache.lucene.monitor	Monitoring framework
org.apache.lucene.search	Code to search indices.
org.apache.lucene.search.spell	Suggest alternate spellings for words.
org.apache.lucene.search.suggest	Support for Autocomplete/Autosuggest
org.apache.lucene.search.suggest.analyzing	Analyzer based autosuggest.
org.apache.lucene.search.suggest.fst	Finite-state based autosuggest.
org.apache.lucene.search.suggest.tst	Ternary Search Tree based autosuggest.
org.apache.lucene.store	Binary i/o API, used for all index data.
org.apache.lucene.util	Some utility classes.
org.apache.lucene.util.bkd	Block KD-tree, implementing the generic spatial data structure described in this paper.

Uses of Directory in org.apache.lucene.analysis.hunspell

Methods in org.apache.lucene.analysis.hunspell with parameters of type Directory

Modifier and Type	Method	Description
private void	Dictionary.readDictionaryFiles(Directory tempDir, java.lang.String tempFileNamePrefix, java.util.List<java.io.InputStream> dictionaries, java.nio.charset.CharsetDecoder decoder, Builder<IntsRef> words)	Reads the dictionary file through the provided InputStreams, building up the words map

Constructors in org.apache.lucene.analysis.hunspell with parameters of type Directory

Constructor	Description
Dictionary(Directory tempDir, java.lang.String tempFileNamePrefix, java.io.InputStream affix, java.io.InputStream dictionary)	Creates a new Dictionary containing the information read from the provided InputStreams to hunspell affix and dictionary files.
Dictionary(Directory tempDir, java.lang.String tempFileNamePrefix, java.io.InputStream affix, java.util.List<java.io.InputStream> dictionaries, boolean ignoreCase)	Creates a new Dictionary containing the information read from the provided InputStreams to hunspell affix and dictionary files.

Uses of Directory in org.apache.lucene.classification.utils

Methods in org.apache.lucene.classification.utils with parameters of type Directory

Modifier and Type	Method	Description
void	DatasetSplitter.split(IndexReader originalIndex, Directory trainingIndex, Directory testIndex, Directory crossValidationIndex, Analyzer analyzer, boolean termVectors, java.lang.String classFieldName, java.lang.String... fieldNames)	Split a given index into 3 indexes for training, test and cross validation tasks respectively

Uses of Directory in org.apache.lucene.codecs

Subclasses of Directory in org.apache.lucene.codecs

Modifier and Type	Class	Description
class	CompoundDirectory	A read-only Directory that consists of a view over a compound file.

Methods in org.apache.lucene.codecs with parameters of type Directory

Modifier and Type	Method	Description
abstract StoredFieldsReader	StoredFieldsFormat.fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)	Returns a StoredFieldsReader to load stored fields.
abstract StoredFieldsWriter	StoredFieldsFormat.fieldsWriter(Directory directory, SegmentInfo si, IOContext context)	Returns a StoredFieldsWriter to write stored fields.
abstract CompoundDirectory	CompoundFormat.getCompoundReader(Directory dir, SegmentInfo si, IOContext context)	Returns a Directory view (read-only) for the compound files in this segment
abstract FieldInfos	FieldInfosFormat.read(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, IOContext iocontext)	Read the FieldInfos previously written with FieldInfosFormat.write(org.apache.lucene.store.Directory, org.apache.lucene.index.SegmentInfo, java.lang.String, org.apache.lucene.index.FieldInfos, org.apache.lucene.store.IOContext).
abstract SegmentInfo	SegmentInfoFormat.read(Directory directory, java.lang.String segmentName, byte[] segmentID, IOContext context)	Read SegmentInfo data from a directory.
abstract Bits	LiveDocsFormat.readLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)	Read live docs bits.
abstract TermVectorsReader	TermVectorsFormat.vectorsReader(Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, IOContext context)	Returns a TermVectorsReader to read term vectors.
abstract TermVectorsWriter	TermVectorsFormat.vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context)	Returns a TermVectorsWriter to write term vectors.
abstract void	CompoundFormat.write(Directory dir, SegmentInfo si, IOContext context)	Packs the provided segment's files into a compound format.
abstract void	FieldInfosFormat.write(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, FieldInfos infos, IOContext context)	Writes the provided FieldInfos to the directory.
abstract void	SegmentInfoFormat.write(Directory dir, SegmentInfo info, IOContext ioContext)	Write SegmentInfo data.
abstract void	LiveDocsFormat.writeLiveDocs(Bits bits, Directory dir, SegmentCommitInfo info, int newDelCount, IOContext context)	Persist live docs bits.

Uses of Directory in org.apache.lucene.codecs.compressing

Fields in org.apache.lucene.codecs.compressing declared as Directory

Modifier and Type	Field	Description
private Directory	FieldsIndexWriter.dir

Methods in org.apache.lucene.codecs.compressing with parameters of type Directory

Modifier and Type	Method	Description
StoredFieldsReader	CompressingStoredFieldsFormat.fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter	CompressingStoredFieldsFormat.fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
TermVectorsReader	CompressingTermVectorsFormat.vectorsReader(Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, IOContext context)
TermVectorsWriter	CompressingTermVectorsFormat.vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context)

Constructors in org.apache.lucene.codecs.compressing with parameters of type Directory

Constructor	Description
CompressingStoredFieldsReader(Directory d, SegmentInfo si, java.lang.String segmentSuffix, FieldInfos fn, IOContext context, java.lang.String formatName, CompressionMode compressionMode)	Sole constructor.
CompressingStoredFieldsWriter(Directory directory, SegmentInfo si, java.lang.String segmentSuffix, IOContext context, java.lang.String formatName, CompressionMode compressionMode, int chunkSize, int maxDocsPerChunk, int blockShift)	Sole constructor.
CompressingTermVectorsReader(Directory d, SegmentInfo si, java.lang.String segmentSuffix, FieldInfos fn, IOContext context, java.lang.String formatName, CompressionMode compressionMode)	Sole constructor.
CompressingTermVectorsWriter(Directory directory, SegmentInfo si, java.lang.String segmentSuffix, IOContext context, java.lang.String formatName, CompressionMode compressionMode, int chunkSize, int blockShift)	Sole constructor.
FieldsIndexReader(Directory dir, java.lang.String name, java.lang.String suffix, java.lang.String extension, java.lang.String codecName, byte[] id, IndexInput metaIn)
FieldsIndexWriter(Directory dir, java.lang.String name, java.lang.String suffix, java.lang.String extension, java.lang.String codecName, byte[] id, int blockShift, IOContext ioContext)

Uses of Directory in org.apache.lucene.codecs.lucene50

Subclasses of Directory in org.apache.lucene.codecs.lucene50

Modifier and Type	Class	Description
(package private) class	Lucene50CompoundReader	Class for accessing a compound stream.

Fields in org.apache.lucene.codecs.lucene50 declared as Directory

Modifier and Type	Field	Description
private Directory	Lucene50CompoundReader.directory

Methods in org.apache.lucene.codecs.lucene50 with parameters of type Directory

Modifier and Type	Method	Description
StoredFieldsReader	Lucene50StoredFieldsFormat.fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter	Lucene50StoredFieldsFormat.fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
CompoundDirectory	Lucene50CompoundFormat.getCompoundReader(Directory dir, SegmentInfo si, IOContext context)
FieldInfos	Lucene50FieldInfosFormat.read(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, IOContext context)
private java.util.Map<java.lang.String,Lucene50CompoundReader.FileEntry>	Lucene50CompoundReader.readEntries(byte[] segmentID, Directory dir, java.lang.String entriesFileName)	Helper method that reads CFS entries from an input stream
Bits	Lucene50LiveDocsFormat.readLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
void	Lucene50CompoundFormat.write(Directory dir, SegmentInfo si, IOContext context)
void	Lucene50FieldInfosFormat.write(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, FieldInfos infos, IOContext context)
void	Lucene50LiveDocsFormat.writeLiveDocs(Bits bits, Directory dir, SegmentCommitInfo info, int newDelCount, IOContext context)

Constructors in org.apache.lucene.codecs.lucene50 with parameters of type Directory

Constructor	Description
Lucene50CompoundReader(Directory directory, SegmentInfo si, IOContext context)	Create a new CompoundFileDirectory.

Uses of Directory in org.apache.lucene.codecs.lucene60

Methods in org.apache.lucene.codecs.lucene60 with parameters of type Directory

Modifier and Type	Method	Description
FieldInfos	Lucene60FieldInfosFormat.read(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, IOContext context)
void	Lucene60FieldInfosFormat.write(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, FieldInfos infos, IOContext context)

Uses of Directory in org.apache.lucene.codecs.lucene70

Methods in org.apache.lucene.codecs.lucene70 with parameters of type Directory

Modifier and Type	Method	Description
SegmentInfo	Lucene70SegmentInfoFormat.read(Directory dir, java.lang.String segment, byte[] segmentID, IOContext context)
void	Lucene70SegmentInfoFormat.write(Directory dir, SegmentInfo si, IOContext ioContext)

Uses of Directory in org.apache.lucene.codecs.lucene86

Methods in org.apache.lucene.codecs.lucene86 with parameters of type Directory

Modifier and Type	Method	Description
SegmentInfo	Lucene86SegmentInfoFormat.read(Directory dir, java.lang.String segment, byte[] segmentID, IOContext context)
void	Lucene86SegmentInfoFormat.write(Directory dir, SegmentInfo si, IOContext ioContext)

Uses of Directory in org.apache.lucene.codecs.lucene87

Methods in org.apache.lucene.codecs.lucene87 with parameters of type Directory

Modifier and Type	Method	Description
StoredFieldsReader	Lucene87StoredFieldsFormat.fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter	Lucene87StoredFieldsFormat.fieldsWriter(Directory directory, SegmentInfo si, IOContext context)

Uses of Directory in org.apache.lucene.codecs.simpletext

Methods in org.apache.lucene.codecs.simpletext with parameters of type Directory

Modifier and Type	Method	Description
StoredFieldsReader	SimpleTextStoredFieldsFormat.fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter	SimpleTextStoredFieldsFormat.fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
CompoundDirectory	SimpleTextCompoundFormat.getCompoundReader(Directory dir, SegmentInfo si, IOContext context)
FieldInfos	SimpleTextFieldInfosFormat.read(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, IOContext iocontext)
SegmentInfo	SimpleTextSegmentInfoFormat.read(Directory directory, java.lang.String segmentName, byte[] segmentID, IOContext context)
Bits	SimpleTextLiveDocsFormat.readLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
TermVectorsReader	SimpleTextTermVectorsFormat.vectorsReader(Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, IOContext context)
TermVectorsWriter	SimpleTextTermVectorsFormat.vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context)
void	SimpleTextCompoundFormat.write(Directory dir, SegmentInfo si, IOContext context)
void	SimpleTextFieldInfosFormat.write(Directory directory, SegmentInfo segmentInfo, java.lang.String segmentSuffix, FieldInfos infos, IOContext context)
void	SimpleTextSegmentInfoFormat.write(Directory dir, SegmentInfo si, IOContext ioContext)
void	SimpleTextLiveDocsFormat.writeLiveDocs(Bits bits, Directory dir, SegmentCommitInfo info, int newDelCount, IOContext context)

Constructors in org.apache.lucene.codecs.simpletext with parameters of type Directory

Constructor	Description
SimpleTextBKDWriter(int maxDoc, Directory tempDir, java.lang.String tempFileNamePrefix, BKDConfig config, double maxMBSortInHeap, long totalPointCount)
SimpleTextStoredFieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
SimpleTextStoredFieldsWriter(Directory directory, java.lang.String segment, IOContext context)
SimpleTextTermVectorsReader(Directory directory, SegmentInfo si, IOContext context)
SimpleTextTermVectorsWriter(Directory directory, java.lang.String segment, IOContext context)

Uses of Directory in org.apache.lucene.index

Subclasses of Directory in org.apache.lucene.index

Modifier and Type	Class	Description
(package private) class	TrackingTmpOutputDirectoryWrapper

Fields in org.apache.lucene.index declared as Directory

Modifier and Type	Field	Description
private Directory	CheckIndex.dir
Directory	CheckIndex.Status.dir	Directory index is in.
private Directory	IndexUpgrader.dir
private Directory	PersistentSnapshotDeletionPolicy.dir
Directory	SegmentInfo.dir	Where this segment resides.
(package private) Directory	StandardDirectoryReader.ReaderCommit.dir
private Directory	PKIndexSplitter.dir1
private Directory	PKIndexSplitter.dir2
protected Directory	DirectoryReader.directory	The index directory.
private Directory	IndexFileDeleter.directory
private Directory	IndexWriter.directory
private Directory	ReaderPool.directory
(package private) Directory	SegmentInfos.FindSegmentsFile.directory
private Directory	SegmentMerger.directory
Directory	SegmentReadState.directory	Directory where this segment is read from.
Directory	SegmentWriteState.directory	Directory where this segment will be written to.
(package private) Directory	StoredFieldsConsumer.directory
protected Directory	TermVectorsConsumer.directory
(package private) Directory	IndexFileDeleter.CommitPoint.directoryOrig
private Directory	IndexFileDeleter.directoryOrig
private Directory	IndexWriter.directoryOrig
private Directory	PKIndexSplitter.input
private Directory	ReaderPool.originalDirectory

Methods in org.apache.lucene.index that return Directory

Modifier and Type	Method	Description
Directory	DirectoryReader.directory()	Returns the directory this index resides in.
Directory	SegmentReader.directory()	Returns the directory this index resides in.
abstract Directory	IndexCommit.getDirectory()	Returns the Directory for the index.
Directory	IndexFileDeleter.CommitPoint.getDirectory()
Directory	IndexWriter.getDirectory()	Returns the Directory used by this index.
Directory	SnapshotDeletionPolicy.SnapshotCommitPoint.getDirectory()
Directory	StandardDirectoryReader.ReaderCommit.getDirectory()
Directory	ConcurrentMergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Directory	MergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)	Wraps the incoming Directory so that we can merge-throttle it using RateLimitedIndexOutput.
Directory	NoMergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)

Methods in org.apache.lucene.index with parameters of type Directory

Modifier and Type	Method	Description
private java.util.List<Lock>	IndexWriter.acquireWriteLocks(Directory... dirs)	Acquires write locks on all the directories; be sure to match with a call to IOUtils.close(java.io.Closeable...) in a finally clause.
long	IndexWriter.addIndexes(Directory... dirs)	Adds all segments from an array of indexes into this index.
void	SegmentInfos.commit(Directory dir)	Writes and syncs to the Directory dir, taking care to remove the segments file on exception
private void	PKIndexSplitter.createIndex(IndexWriterConfig config, Directory target, DirectoryReader reader, Query preserveFilter, boolean negateFilter)
(package private) java.lang.String	SegmentInfos.finishCommit(Directory dir)	Returns the committed segments_N filename.
(package private) abstract DocConsumer	DocumentsWriterPerThread.IndexingChain.getChain(int indexCreatedVersionMajor, SegmentInfo segmentInfo, Directory directory, FieldInfos.Builder fieldInfos, LiveIndexWriterConfig indexWriterConfig, java.util.function.Consumer<java.lang.Throwable> abortingExceptionConsumer)
(package private) DocValuesProducer	SegmentDocValues.getDocValuesProducer(long gen, SegmentCommitInfo si, Directory dir, FieldInfos infos)	Returns the DocValuesProducer for the given generation.
static long	SegmentInfos.getLastCommitGeneration(Directory directory)	Get the generation of the most recent commit to the index in this directory (N in the segments_N file).
static java.lang.String	SegmentInfos.getLastCommitSegmentsFileName(Directory directory)	Get the filename of the segments_N file for the most recent commit to the index in this Directory.
private void	ReadersAndUpdates.handleDVUpdates(FieldInfos infos, Directory dir, DocValuesFormat dvFormat, SegmentReader reader, java.util.Map<java.lang.Integer,java.util.Set<java.lang.String>> fieldFiles, long maxDelGen, InfoStream infoStream)
static boolean	DirectoryReader.indexExists(Directory directory)	Returns true if an index likely exists at the specified directory.
private void	ConcurrentMergeScheduler.initDynamicDefaults(Directory directory)
(package private) void	ConcurrentMergeScheduler.initialize(InfoStream infoStream, Directory directory)
(package private) void	MergeScheduler.initialize(InfoStream infoStream, Directory directory)	IndexWriter calls this on init.
static java.util.List<IndexCommit>	DirectoryReader.listCommits(Directory dir)	Returns all commit points that exist in the Directory.
private RefCount<DocValuesProducer>	SegmentDocValues.newDocValuesProducer(SegmentCommitInfo si, Directory dir, java.lang.Long gen, FieldInfos infos)
private void	IndexWriter.noDupDirs(Directory... dirs)
static DirectoryReader	DirectoryReader.open(Directory directory)	Returns a IndexReader reading the index in the given Directory
(package private) static DirectoryReader	StandardDirectoryReader.open(Directory directory, IndexCommit commit)	called from DirectoryReader.open(...) methods
static DirectoryReader	StandardDirectoryReader.open(Directory directory, SegmentInfos infos, java.util.List<? extends LeafReader> oldReaders)	This constructor is only used for StandardDirectoryReader.doOpenIfChanged(SegmentInfos), as well as NRT replication.
(package private) void	SegmentInfos.prepareCommit(Directory dir)	Call this to start a commit.
static SegmentInfos	SegmentInfos.readCommit(Directory directory, java.lang.String segmentFileName)	Read a particular segmentFileName.
static SegmentInfos	SegmentInfos.readCommit(Directory directory, ChecksumIndexInput input, long generation)	Read the commit from the provided ChecksumIndexInput.
static SegmentInfos	SegmentInfos.readLatestCommit(Directory directory)	Find the latest commit (segments_N file) and load all SegmentCommitInfos.
(package private) void	SegmentInfos.rollbackCommit(Directory dir)
java.lang.String	MergePolicy.MergeSpecification.segString(Directory dir)	Returns a description of the merges in this specification.
void	MultiPassIndexSplitter.split(IndexReader in, Directory[] outputs, boolean seq)	Split source index into multiple parts.
Directory	ConcurrentMergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Directory	MergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)	Wraps the incoming Directory so that we can merge-throttle it using RateLimitedIndexOutput.
Directory	NoMergeScheduler.wrapForMerge(MergePolicy.OneMerge merge, Directory in)
private void	SegmentInfos.write(Directory directory)
private java.util.Set<java.lang.String>	ReadersAndUpdates.writeFieldInfosGen(FieldInfos fieldInfos, Directory dir, FieldInfosFormat infosFormat)
boolean	ReadersAndUpdates.writeFieldUpdates(Directory dir, FieldInfos.FieldNumbers fieldNumbers, long maxDelGen, InfoStream infoStream)
(package private) boolean	PendingDeletes.writeLiveDocs(Directory dir)	Writes the live docs to disk and returns true if any new docs were written.
(package private) boolean	PendingSoftDeletes.writeLiveDocs(Directory dir)
boolean	ReadersAndUpdates.writeLiveDocs(Directory dir)

Constructors in org.apache.lucene.index with parameters of type Directory

Constructor	Description
CheckIndex(Directory dir)	Create a new CheckIndex on the directory.
CheckIndex(Directory dir, Lock writeLock)	Expert: create a directory with the specified lock.
CommitPoint(java.util.Collection<IndexFileDeleter.CommitPoint> commitsToDelete, Directory directoryOrig, SegmentInfos segmentInfos)
DefaultIndexingChain(int indexCreatedVersionMajor, SegmentInfo segmentInfo, Directory directory, FieldInfos.Builder fieldInfos, LiveIndexWriterConfig indexWriterConfig, java.util.function.Consumer<java.lang.Throwable> abortingExceptionConsumer)
DirectoryReader(Directory directory, LeafReader[] segmentReaders)	Expert: Constructs a DirectoryReader on the given subReaders.
DocumentsWriter(DocumentsWriter.FlushNotifications flushNotifications, int indexCreatedVersionMajor, java.util.concurrent.atomic.AtomicLong pendingNumDocs, boolean enableTestPoints, java.util.function.Supplier<java.lang.String> segmentNameSupplier, LiveIndexWriterConfig config, Directory directoryOrig, Directory directory, FieldInfos.FieldNumbers globalFieldNumberMap)
DocumentsWriterPerThread(int indexVersionCreated, java.lang.String segmentName, Directory directoryOrig, Directory directory, LiveIndexWriterConfig indexWriterConfig, DocumentsWriterDeleteQueue deleteQueue, FieldInfos.Builder fieldInfos, java.util.concurrent.atomic.AtomicLong pendingNumDocs, boolean enableTestPoints)
FindSegmentsFile(Directory directory)	Sole constructor.
IndexFileDeleter(java.lang.String[] files, Directory directoryOrig, Directory directory, IndexDeletionPolicy policy, SegmentInfos segmentInfos, InfoStream infoStream, IndexWriter writer, boolean initialIndexExists, boolean isReaderInit)	Initialize the deleter: find all previous commits in the Directory, incref the files they reference, call the policy to let it delete commits.
IndexUpgrader(Directory dir)	Creates index upgrader on the given directory, using an IndexWriter using the given matchVersion.
IndexUpgrader(Directory dir, IndexWriterConfig iwc, boolean deletePriorCommits)	Creates index upgrader on the given directory, using an IndexWriter using the given config.
IndexUpgrader(Directory dir, InfoStream infoStream, boolean deletePriorCommits)	Creates index upgrader on the given directory, using an IndexWriter using the given matchVersion.
IndexWriter(Directory d, IndexWriterConfig conf)	Constructs a new IndexWriter per the settings given in conf.
PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir)	PersistentSnapshotDeletionPolicy wraps another IndexDeletionPolicy to enable flexible snapshotting, passing IndexWriterConfig.OpenMode.CREATE_OR_APPEND by default.
PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir, IndexWriterConfig.OpenMode mode)	PersistentSnapshotDeletionPolicy wraps another IndexDeletionPolicy to enable flexible snapshotting.
PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Term midTerm)	Split an index based on a given primary key term and a 'middle' term.
PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Term midTerm, IndexWriterConfig config1, IndexWriterConfig config2)
PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Query docsInFirstIndex)	Split an index based on a Query.
PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Query docsInFirstIndex, IndexWriterConfig config1, IndexWriterConfig config2)
ReaderCommit(StandardDirectoryReader reader, SegmentInfos infos, Directory dir)
ReaderManager(Directory dir)	Creates and returns a new ReaderManager from the given Directory.
ReaderPool(Directory directory, Directory originalDirectory, SegmentInfos segmentInfos, FieldInfos.FieldNumbers fieldNumbers, java.util.function.LongSupplier completedDelGenSupplier, InfoStream infoStream, java.lang.String softDeletesField, StandardDirectoryReader reader)
SegmentCoreReaders(Directory dir, SegmentCommitInfo si, IOContext context)
SegmentDocValuesProducer(SegmentCommitInfo si, Directory dir, FieldInfos coreInfos, FieldInfos allInfos, SegmentDocValues segDocValues)	Creates a new producer that handles updated docvalues fields
SegmentInfo(Directory dir, Version version, Version minVersion, java.lang.String name, int maxDoc, boolean isCompoundFile, Codec codec, java.util.Map<java.lang.String,java.lang.String> diagnostics, byte[] id, java.util.Map<java.lang.String,java.lang.String> attributes, Sort indexSort)	Construct a new complete SegmentInfo instance from input.
SegmentMerger(java.util.List<CodecReader> readers, SegmentInfo segmentInfo, InfoStream infoStream, Directory dir, FieldInfos.FieldNumbers fieldNumbers, IOContext context)
SegmentReadState(Directory dir, SegmentInfo info, FieldInfos fieldInfos, IOContext context)	Create a SegmentReadState.
SegmentReadState(Directory dir, SegmentInfo info, FieldInfos fieldInfos, IOContext context, java.lang.String segmentSuffix)	Create a SegmentReadState.
SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, BufferedUpdates segUpdates, IOContext context)	Sole constructor.
SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, BufferedUpdates segUpdates, IOContext context, java.lang.String segmentSuffix)	Constructor which takes segment suffix.
SortingStoredFieldsConsumer(Codec codec, Directory directory, SegmentInfo info)
SortingTermVectorsConsumer(IntBlockPool.Allocator intBlockAllocator, ByteBlockPool.Allocator byteBlockAllocator, Directory directory, SegmentInfo info, Codec codec)
StandardDirectoryReader(Directory directory, LeafReader[] readers, IndexWriter writer, SegmentInfos sis, boolean applyAllDeletes, boolean writeAllDeletes)	called only from static open() methods
StoredFieldsConsumer(Codec codec, Directory directory, SegmentInfo info)
TermVectorsConsumer(IntBlockPool.Allocator intBlockAllocator, ByteBlockPool.Allocator byteBlockAllocator, Directory directory, SegmentInfo info, Codec codec)
TrackingTmpOutputDirectoryWrapper(Directory in)

Uses of Directory in org.apache.lucene.misc

Methods in org.apache.lucene.misc with parameters of type Directory

Modifier and Type	Method	Description
static void	GetTermInfo.getTermInfo(Directory dir, Term term)

Uses of Directory in org.apache.lucene.monitor

Fields in org.apache.lucene.monitor declared as Directory

Modifier and Type	Field	Description
private Directory	DocumentBatch.MultiDocumentBatch.directory

Uses of Directory in org.apache.lucene.search

Constructors in org.apache.lucene.search with parameters of type Directory

Constructor	Description
SearcherManager(Directory dir, SearcherFactory searcherFactory)	Creates and returns a new SearcherManager from the given Directory.

Uses of Directory in org.apache.lucene.search.spell

Fields in org.apache.lucene.search.spell declared as Directory

Modifier and Type	Field	Description
(package private) Directory	SpellChecker.spellIndex	the spell index

Methods in org.apache.lucene.search.spell with parameters of type Directory

Modifier and Type	Method	Description
(package private) IndexSearcher	SpellChecker.createSearcher(Directory dir)	Creates a new read-only IndexSearcher
void	SpellChecker.setSpellIndex(Directory spellIndexDir)	Use a different index as the spell checker index or re-open the existing index if spellIndex is the same value as given in the constructor.
private void	SpellChecker.swapSearcher(Directory dir)

Constructors in org.apache.lucene.search.spell with parameters of type Directory

Constructor	Description
SpellChecker(Directory spellIndex)	Use the given directory as a spell checker index with a LevenshteinDistance as the default StringDistance.
SpellChecker(Directory spellIndex, StringDistance sd)	Use the given directory as a spell checker index.
SpellChecker(Directory spellIndex, StringDistance sd, java.util.Comparator<SuggestWord> comparator)	Use the given directory as a spell checker index with the given StringDistance measure and the given Comparator for sorting the results.

Uses of Directory in org.apache.lucene.search.suggest

Fields in org.apache.lucene.search.suggest declared as Directory

Modifier and Type	Field	Description
private Directory	SortedInputIterator.tempDir

Constructors in org.apache.lucene.search.suggest with parameters of type Directory

Constructor	Description
SortedInputIterator(Directory tempDir, java.lang.String tempFileNamePrefix, InputIterator source)	Creates a new sorted wrapper, using natural order for sorting.
SortedInputIterator(Directory tempDir, java.lang.String tempFileNamePrefix, InputIterator source, java.util.Comparator<BytesRef> comparator)	Creates a new sorted wrapper, sorting by BytesRef (ascending) then cost (ascending).

Uses of Directory in org.apache.lucene.search.suggest.analyzing

Fields in org.apache.lucene.search.suggest.analyzing declared as Directory

Modifier and Type	Field	Description
private Directory	AnalyzingInfixSuggester.dir
private Directory	AnalyzingSuggester.tempDir

Methods in org.apache.lucene.search.suggest.analyzing that return Directory

Modifier and Type	Method	Description
protected Directory	AnalyzingInfixSuggester.getDirectory(java.nio.file.Path path)	Subclass can override to choose a specific Directory implementation.

Constructors in org.apache.lucene.search.suggest.analyzing with parameters of type Directory

Constructor	Description
AnalyzingInfixSuggester(Directory dir, Analyzer analyzer)	Create a new instance, loading from a previously built AnalyzingInfixSuggester directory, if it exists.
AnalyzingInfixSuggester(Directory dir, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int minPrefixChars, boolean commitOnBuild)	Create a new instance, loading from a previously built AnalyzingInfixSuggester directory, if it exists.
AnalyzingInfixSuggester(Directory dir, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int minPrefixChars, boolean commitOnBuild, boolean allTermsRequired, boolean highlight)	Create a new instance, loading from a previously built AnalyzingInfixSuggester directory, if it exists.
AnalyzingInfixSuggester(Directory dir, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int minPrefixChars, boolean commitOnBuild, boolean allTermsRequired, boolean highlight, boolean closeIndexWriterOnBuild)	Create a new instance, loading from a previously built AnalyzingInfixSuggester directory, if it exists.
AnalyzingSuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer analyzer)	Calls AnalyzingSuggester(analyzer, analyzer, EXACT_FIRST | PRESERVE_SEP, 256, -1, true)
AnalyzingSuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer indexAnalyzer, Analyzer queryAnalyzer)	Calls AnalyzingSuggester(indexAnalyzer, queryAnalyzer, EXACT_FIRST | PRESERVE_SEP, 256, -1, true)
AnalyzingSuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int options, int maxSurfaceFormsPerAnalyzedForm, int maxGraphExpansions, boolean preservePositionIncrements)	Creates a new suggester.
BlendedInfixSuggester(Directory dir, Analyzer analyzer)	Create a new instance, loading from a previously built directory, if it exists.
BlendedInfixSuggester(Directory dir, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int minPrefixChars, BlendedInfixSuggester.BlenderType blenderType, int numFactor, boolean commitOnBuild)	Create a new instance, loading from a previously built directory, if it exists.
BlendedInfixSuggester(Directory dir, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int minPrefixChars, BlendedInfixSuggester.BlenderType blenderType, int numFactor, java.lang.Double exponent, boolean commitOnBuild, boolean allTermsRequired, boolean highlight)	Create a new instance, loading from a previously built directory, if it exists.
FuzzySuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer analyzer)	Creates a FuzzySuggester instance initialized with default values.
FuzzySuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer indexAnalyzer, Analyzer queryAnalyzer)	Creates a FuzzySuggester instance with an index and query analyzer initialized with default values.
FuzzySuggester(Directory tempDir, java.lang.String tempFileNamePrefix, Analyzer indexAnalyzer, Analyzer queryAnalyzer, int options, int maxSurfaceFormsPerAnalyzedForm, int maxGraphExpansions, boolean preservePositionIncrements, int maxEdits, boolean transpositions, int nonFuzzyPrefix, int minFuzzyLength, boolean unicodeAware)	Creates a FuzzySuggester instance.

Uses of Directory in org.apache.lucene.search.suggest.fst

Fields in org.apache.lucene.search.suggest.fst declared as Directory

Modifier and Type	Field	Description
private Directory	FSTCompletionLookup.tempDir
private Directory	WFSTCompletionLookup.tempDir

Constructors in org.apache.lucene.search.suggest.fst with parameters of type Directory

Constructor	Description
FSTCompletionLookup(Directory tempDir, java.lang.String tempFileNamePrefix)	This constructor prepares for creating a suggested FST using the FSTCompletionLookup.build(InputIterator) method.
FSTCompletionLookup(Directory tempDir, java.lang.String tempFileNamePrefix, int buckets, boolean exactMatchFirst)	This constructor prepares for creating a suggested FST using the FSTCompletionLookup.build(InputIterator) method.
FSTCompletionLookup(Directory tempDir, java.lang.String tempFileNamePrefix, FSTCompletion completion, boolean exactMatchFirst)	This constructor takes a pre-built automaton.
WFSTCompletionLookup(Directory tempDir, java.lang.String tempFileNamePrefix)	Calls WFSTCompletionLookup(null,null,true)
WFSTCompletionLookup(Directory tempDir, java.lang.String tempFileNamePrefix, boolean exactFirst)	Creates a new suggester.
WFSTInputIterator(Directory tempDir, java.lang.String tempFileNamePrefix, InputIterator source)

Uses of Directory in org.apache.lucene.search.suggest.tst

Fields in org.apache.lucene.search.suggest.tst declared as Directory

Modifier and Type	Field	Description
private Directory	TSTLookup.tempDir

Constructors in org.apache.lucene.search.suggest.tst with parameters of type Directory

Constructor	Description
TSTLookup(Directory tempDir, java.lang.String tempFileNamePrefix)	Creates a new TSTLookup, for building.

Uses of Directory in org.apache.lucene.store

Subclasses of Directory in org.apache.lucene.store

Modifier and Type	Class	Description
class	BaseDirectory	Base implementation for a concrete Directory that uses a LockFactory for locking.
class	ByteBuffersDirectory	A ByteBuffer-based Directory implementation that can be used to store index files on the heap.
class	FileSwitchDirectory	Expert: A Directory instance that switches files between two other Directory instances.
class	FilterDirectory	Directory implementation that delegates calls to another directory.
class	FSDirectory	Base class for Directory implementations that store index files in the file system.
class	HardlinkCopyDirectoryWrapper	This directory wrapper overrides copyFrom(Directory, String, String, IOContext) in order to optionally use a hard-link instead of a full byte by byte file copy if applicable.
class	LockValidatingDirectoryWrapper	This class makes a best-effort check that a provided Lock is valid before any destructive filesystem operation.
class	MMapDirectory	File-based Directory implementation that uses mmap for reading, and FSDirectory.FSIndexOutput for writing.
class	NativeUnixDirectory	A Directory implementation for all Unixes that uses DIRECT I/O to bypass OS level IO caching during merging.
class	NIOFSDirectory	An FSDirectory implementation that uses java.nio's FileChannel's positional read, which allows multiple threads to read from the same file without synchronizing.
class	NRTCachingDirectory	Wraps a RAMDirectory around any provided delegate directory, to be used during NRT search.
class	RAFDirectory	A straightforward implementation of FSDirectory using java.io.RandomAccessFile.
class	RAMDirectory	Deprecated. This class uses inefficient synchronization and is discouraged in favor of MMapDirectory.
class	SimpleFSDirectory	Deprecated. This class is a less efficient implementation of what's available in NIOFSDirectory, and will be removed in future versions of Lucene.
class	SleepingLockWrapper	Directory that wraps another, and that sleeps and retries if obtaining the lock fails.
class	TrackingDirectoryWrapper	A delegating Directory that records which files were written to and deleted.
class	WindowsDirectory	Native Directory implementation for Microsoft Windows.

Fields in org.apache.lucene.store declared as Directory

Modifier and Type	Field	Description
private Directory	NativeUnixDirectory.delegate
protected Directory	FilterDirectory.in
private Directory	FileSwitchDirectory.primaryDir
private Directory	FileSwitchDirectory.secondaryDir

Methods in org.apache.lucene.store that return Directory

Modifier and Type	Method	Description
Directory	FilterDirectory.getDelegate()	Return the wrapped Directory.
private Directory	FileSwitchDirectory.getDirectory(java.lang.String name)
Directory	FileSwitchDirectory.getPrimaryDir()	Return the primary directory
Directory	FileSwitchDirectory.getSecondaryDir()	Return the secondary directory
static Directory	FilterDirectory.unwrap(Directory dir)	Get the wrapped instance by dir as long as this reader is an instance of FilterDirectory.

Methods in org.apache.lucene.store with parameters of type Directory

Modifier and Type	Method	Description
void	Directory.copyFrom(Directory from, java.lang.String src, java.lang.String dest, IOContext context)	Copies an existing src file from directory from to a non-existent file dest in this directory.
void	HardlinkCopyDirectoryWrapper.copyFrom(Directory from, java.lang.String srcFile, java.lang.String destFile, IOContext context)
void	LockValidatingDirectoryWrapper.copyFrom(Directory from, java.lang.String src, java.lang.String dest, IOContext context)
void	TrackingDirectoryWrapper.copyFrom(Directory from, java.lang.String src, java.lang.String dest, IOContext context)
Lock	FSLockFactory.obtainLock(Directory dir, java.lang.String lockName)
abstract Lock	LockFactory.obtainLock(Directory dir, java.lang.String lockName)	Return a new obtained Lock instance identified by lockName.
Lock	NoLockFactory.obtainLock(Directory dir, java.lang.String lockName)
Lock	SingleInstanceLockFactory.obtainLock(Directory dir, java.lang.String lockName)
Lock	VerifyingLockFactory.obtainLock(Directory dir, java.lang.String lockName)
(package private) static boolean	NRTCachingDirectory.slowFileExists(Directory dir, java.lang.String fileName)	Returns true if the file exists (can be opened), false if it cannot be opened, and (unlike Java's File.exists) throws IOException if there's some unexpected error.
static Directory	FilterDirectory.unwrap(Directory dir)	Get the wrapped instance by dir as long as this reader is an instance of FilterDirectory.

Constructors in org.apache.lucene.store with parameters of type Directory

Constructor	Description
FileSwitchDirectory(java.util.Set<java.lang.String> primaryExtensions, Directory primaryDir, Directory secondaryDir, boolean doClose)
FilterDirectory(Directory in)	Sole constructor, typically called from sub-classes.
HardlinkCopyDirectoryWrapper(Directory in)	Creates a new HardlinkCopyDirectoryWrapper delegating to the given directory
LockValidatingDirectoryWrapper(Directory in, Lock writeLock)
NativeUnixDirectory(java.nio.file.Path path, int mergeBufferSize, long minBytesDirect, LockFactory lockFactory, Directory delegate)	Create a new NIOFSDirectory for the named location.
NativeUnixDirectory(java.nio.file.Path path, Directory delegate)	Create a new NIOFSDirectory for the named location with FSLockFactory.getDefault().
NativeUnixDirectory(java.nio.file.Path path, LockFactory lockFactory, Directory delegate)	Create a new NIOFSDirectory for the named location.
NRTCachingDirectory(Directory delegate, double maxMergeSizeMB, double maxCachedMB)	We will cache a newly created output if 1) it's a flush or a merge and the estimated size of the merged segment is <= maxMergeSizeMB, and 2) the total cached bytes is <= maxCachedMB
SleepingLockWrapper(Directory delegate, long lockWaitTimeout)	Create a new SleepingLockFactory
SleepingLockWrapper(Directory delegate, long lockWaitTimeout, long pollInterval)	Create a new SleepingLockFactory
TrackingDirectoryWrapper(Directory in)

Uses of Directory in org.apache.lucene.util

Fields in org.apache.lucene.util declared as Directory

Modifier and Type	Field	Description
private Directory	OfflineSorter.dir
private Directory	OfflineSorter.MergePartitionsTask.dir
private Directory	OfflineSorter.SortPartitionTask.dir

Methods in org.apache.lucene.util that return Directory

Modifier and Type	Method	Description
Directory	OfflineSorter.getDirectory()	Returns the Directory we use to create temp files.

Methods in org.apache.lucene.util that return types with arguments of type Directory

Modifier and Type	Method	Description
static java.lang.Class<? extends Directory>	CommandLineUtil.loadDirectoryClass(java.lang.String clazzName)	Loads a specific Directory implementation

Methods in org.apache.lucene.util with parameters of type Directory

Modifier and Type	Method	Description
static void	IOUtils.deleteFiles(Directory dir, java.util.Collection<java.lang.String> names)	Deletes all given file names.
static void	IOUtils.deleteFilesIgnoringExceptions(Directory dir, java.lang.String... files)
static void	IOUtils.deleteFilesIgnoringExceptions(Directory dir, java.util.Collection<java.lang.String> files)	Deletes all given files, suppressing all thrown IOExceptions.
(package private) void	OfflineSorter.mergePartitions(Directory trackingDir, java.util.List<java.util.concurrent.Future<OfflineSorter.Partition>> segments)	Merge the most recent maxTempFile partitions into a new partition.
static boolean	IOUtils.spins(Directory dir)	If the dir is an FSDirectory or wraps one via possibly nested FilterDirectory or FileSwitchDirectory, this returns IOUtils.spins(Path) for the wrapped directory, else, true.

Constructors in org.apache.lucene.util with parameters of type Directory

Constructor	Description
MergePartitionsTask(Directory dir, java.util.List<java.util.concurrent.Future<OfflineSorter.Partition>> segmentsToMerge)
OfflineSorter(Directory dir, java.lang.String tempFileNamePrefix)	Defaults constructor.
OfflineSorter(Directory dir, java.lang.String tempFileNamePrefix, java.util.Comparator<BytesRef> comparator)	Defaults constructor with a custom comparator.
OfflineSorter(Directory dir, java.lang.String tempFileNamePrefix, java.util.Comparator<BytesRef> comparator, OfflineSorter.BufferSize ramBufferSize, int maxTempfiles, int valueLength, java.util.concurrent.ExecutorService exec, int maxPartitionsInRAM)	All-details constructor.
SortPartitionTask(Directory dir, OfflineSorter.Partition part)

Uses of Directory in org.apache.lucene.util.bkd

Fields in org.apache.lucene.util.bkd declared as Directory

Modifier and Type	Field	Description
private Directory	BKDRadixSelector.tempDir
(package private) Directory	OfflinePointWriter.tempDir

Constructors in org.apache.lucene.util.bkd with parameters of type Directory

Constructor	Description
BKDRadixSelector(BKDConfig config, int maxPointsSortInHeap, Directory tempDir, java.lang.String tempFileNamePrefix)	Sole constructor.
BKDWriter(int maxDoc, Directory tempDir, java.lang.String tempFileNamePrefix, BKDConfig config, double maxMBSortInHeap, long totalPointCount)
OfflinePointReader(BKDConfig config, Directory tempDir, java.lang.String tempFileName, long start, long length, byte[] reusableBuffer)
OfflinePointWriter(BKDConfig config, Directory tempDir, java.lang.String tempFileNamePrefix, java.lang.String desc, long expectedCount)	Create a new writer with an unknown number of incoming points