Uses of Class
org.apache.lucene.store.Directory
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Packages that use Directory Package Description org.apache.lucene.codecs Codecs API: API for customization of the encoding and structure of the index.org.apache.lucene.codecs.lucene90 Lucene 9.0 file format.org.apache.lucene.codecs.lucene90.compressing Lucene 9.0 compressing format.org.apache.lucene.codecs.lucene94 Lucene 9.4 file format.org.apache.lucene.codecs.lucene99 Lucene 9.9 file format.org.apache.lucene.index Code to maintain and access indices.org.apache.lucene.search Code to search indices.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. -
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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-onlyDirectory
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 aStoredFieldsReader
to load stored fields.abstract StoredFieldsWriter
StoredFieldsFormat. fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
Returns aStoredFieldsWriter
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 segmentabstract FieldInfos
FieldInfosFormat. read(Directory directory, SegmentInfo segmentInfo, String segmentSuffix, IOContext iocontext)
abstract SegmentInfo
SegmentInfoFormat. read(Directory directory, String segmentName, byte[] segmentID, IOContext context)
ReadSegmentInfo
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 aTermVectorsReader
to read term vectors.abstract TermVectorsWriter
TermVectorsFormat. vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context)
Returns aTermVectorsWriter
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, String segmentSuffix, FieldInfos infos, IOContext context)
Writes the providedFieldInfos
to the directory.abstract void
SegmentInfoFormat. write(Directory dir, SegmentInfo info, IOContext ioContext)
WriteSegmentInfo
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.lucene90
Methods in org.apache.lucene.codecs.lucene90 with parameters of type Directory Modifier and Type Method Description StoredFieldsReader
Lucene90StoredFieldsFormat. fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter
Lucene90StoredFieldsFormat. fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
CompoundDirectory
Lucene90CompoundFormat. getCompoundReader(Directory dir, SegmentInfo si, IOContext context)
Bits
Lucene90LiveDocsFormat. readLiveDocs(Directory dir, SegmentCommitInfo info, IOContext context)
void
Lucene90CompoundFormat. write(Directory dir, SegmentInfo si, IOContext context)
void
Lucene90LiveDocsFormat. writeLiveDocs(Bits bits, Directory dir, SegmentCommitInfo info, int newDelCount, IOContext context)
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Uses of Directory in org.apache.lucene.codecs.lucene90.compressing
Methods in org.apache.lucene.codecs.lucene90.compressing with parameters of type Directory Modifier and Type Method Description StoredFieldsReader
Lucene90CompressingStoredFieldsFormat. fieldsReader(Directory directory, SegmentInfo si, FieldInfos fn, IOContext context)
StoredFieldsWriter
Lucene90CompressingStoredFieldsFormat. fieldsWriter(Directory directory, SegmentInfo si, IOContext context)
TermVectorsReader
Lucene90CompressingTermVectorsFormat. vectorsReader(Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, IOContext context)
TermVectorsWriter
Lucene90CompressingTermVectorsFormat. vectorsWriter(Directory directory, SegmentInfo segmentInfo, IOContext context)
Constructors in org.apache.lucene.codecs.lucene90.compressing with parameters of type Directory Constructor Description Lucene90CompressingStoredFieldsReader(Directory d, SegmentInfo si, String segmentSuffix, FieldInfos fn, IOContext context, String formatName, CompressionMode compressionMode)
Sole constructor.Lucene90CompressingTermVectorsReader(Directory d, SegmentInfo si, String segmentSuffix, FieldInfos fn, IOContext context, String formatName, CompressionMode compressionMode)
Sole constructor. -
Uses of Directory in org.apache.lucene.codecs.lucene94
Methods in org.apache.lucene.codecs.lucene94 with parameters of type Directory Modifier and Type Method Description FieldInfos
Lucene94FieldInfosFormat. read(Directory directory, SegmentInfo segmentInfo, String segmentSuffix, IOContext context)
void
Lucene94FieldInfosFormat. write(Directory directory, SegmentInfo segmentInfo, String segmentSuffix, FieldInfos infos, IOContext context)
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Uses of Directory in org.apache.lucene.codecs.lucene99
Methods in org.apache.lucene.codecs.lucene99 with parameters of type Directory Modifier and Type Method Description SegmentInfo
Lucene99SegmentInfoFormat. read(Directory dir, String segment, byte[] segmentID, IOContext context)
void
Lucene99SegmentInfoFormat. write(Directory dir, SegmentInfo si, IOContext ioContext)
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Uses of Directory in org.apache.lucene.index
Fields in org.apache.lucene.index declared as Directory Modifier and Type Field Description Directory
CheckIndex.Status. dir
Directory index is in.Directory
SegmentInfo. dir
Where this segment resides.protected Directory
DirectoryReader. directory
The index directory.Directory
SegmentReadState. directory
Directory
where this segment is read from.Directory
SegmentWriteState. directory
Directory
where this segment will be written to.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 theDirectory
for the index.Directory
IndexWriter. getDirectory()
Returns the Directory used by this index.Directory
ConcurrentMergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Directory
MergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Wraps the incomingDirectory
so that we can merge-throttle it usingRateLimitedIndexOutput
.Directory
NoMergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Methods in org.apache.lucene.index with parameters of type Directory Modifier and Type Method Description 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 exceptionstatic 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 String
SegmentInfos. getLastCommitSegmentsFileName(Directory directory)
Get the filename of the segments_N file for the most recent commit to the index in this Directory.static boolean
DirectoryReader. indexExists(Directory directory)
Returnstrue
if an index likely exists at the specified directory.static List<IndexCommit>
DirectoryReader. listCommits(Directory dir)
Returns all commit points that exist in the Directory.static DirectoryReader
DirectoryReader. open(Directory directory)
Returns a IndexReader reading the index in the given Directorystatic DirectoryReader
DirectoryReader. open(Directory directory, Comparator<LeafReader> leafSorter)
Returns a IndexReader for the the index in the given Directorystatic DirectoryReader
StandardDirectoryReader. open(Directory directory, SegmentInfos infos, List<? extends LeafReader> oldReaders, Comparator<LeafReader> leafSorter)
This constructor is only used forStandardDirectoryReader.doOpenIfChanged(SegmentInfos)
, as well as NRT replication.static SegmentInfos
SegmentInfos. readCommit(Directory directory, String segmentFileName)
Read a particular segmentFileName.static SegmentInfos
SegmentInfos. readCommit(Directory directory, ChecksumIndexInput input, long generation)
Read the commit from the providedChecksumIndexInput
.static SegmentInfos
SegmentInfos. readLatestCommit(Directory directory)
Find the latest commit (segments_N file
) and load allSegmentCommitInfo
s.static SegmentInfos
SegmentInfos. readLatestCommit(Directory directory, int minSupportedMajorVersion)
Find the latest commit (segments_N file
) and load allSegmentCommitInfo
s, as long as the commit'sSegmentInfos.getIndexCreatedVersionMajor()
is strictly greater than the provided minimum supported major version.Sorter.DocMap
MergePolicy.OneMerge. reorder(CodecReader reader, Directory dir)
Extend this method if you wish to renumber doc IDs.String
MergePolicy.MergeSpecification. segString(Directory dir)
Returns a description of the merges in this specification.Directory
ConcurrentMergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Directory
MergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
Wraps the incomingDirectory
so that we can merge-throttle it usingRateLimitedIndexOutput
.Directory
NoMergeScheduler. wrapForMerge(MergePolicy.OneMerge merge, Directory in)
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.DirectoryReader(Directory directory, LeafReader[] segmentReaders, Comparator<LeafReader> leafSorter)
Expert: Constructs aDirectoryReader
on the given subReaders.FindSegmentsFile(Directory directory)
Sole constructor.IndexUpgrader(Directory dir)
Creates index upgrader on the given directory, using anIndexWriter
using the givenmatchVersion
.IndexUpgrader(Directory dir, IndexWriterConfig iwc, boolean deletePriorCommits)
Creates index upgrader on the given directory, using anIndexWriter
using the given config.IndexUpgrader(Directory dir, InfoStream infoStream, boolean deletePriorCommits)
Creates index upgrader on the given directory, using anIndexWriter
using the givenmatchVersion
.IndexWriter(Directory d, IndexWriterConfig conf)
Constructs a new IndexWriter per the settings given inconf
.PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir)
PersistentSnapshotDeletionPolicy
wraps anotherIndexDeletionPolicy
to enable flexible snapshotting, passingIndexWriterConfig.OpenMode.CREATE_OR_APPEND
by default.PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir, IndexWriterConfig.OpenMode mode)
PersistentSnapshotDeletionPolicy
wraps anotherIndexDeletionPolicy
to enable flexible snapshotting.ReaderManager(Directory dir)
Creates and returns a new ReaderManager from the givenDirectory
.SegmentInfo(Directory dir, Version version, Version minVersion, String name, int maxDoc, boolean isCompoundFile, boolean hasBlocks, Codec codec, Map<String,String> diagnostics, byte[] id, Map<String,String> attributes, Sort indexSort)
Construct a new complete SegmentInfo instance from input.SegmentReadState(Directory dir, SegmentInfo info, FieldInfos fieldInfos, IOContext context)
Create aSegmentReadState
.SegmentReadState(Directory dir, SegmentInfo info, FieldInfos fieldInfos, IOContext context, String segmentSuffix)
Create aSegmentReadState
.SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, org.apache.lucene.index.BufferedUpdates segUpdates, IOContext context)
Sole constructor.SegmentWriteState(InfoStream infoStream, Directory directory, SegmentInfo segmentInfo, FieldInfos fieldInfos, org.apache.lucene.index.BufferedUpdates segUpdates, IOContext context, String segmentSuffix)
Constructor which takes segment suffix. -
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 givenDirectory
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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 concreteDirectory
that uses aLockFactory
for locking.class
ByteBuffersDirectory
AByteBuffer
-basedDirectory
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
LockValidatingDirectoryWrapper
This class makes a best-effort check that a providedLock
is valid before any destructive filesystem operation.class
MMapDirectory
File-basedDirectory
implementation that uses mmap for reading, andFSDirectory.FSIndexOutput
for writing.class
NIOFSDirectory
AnFSDirectory
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 RAM-resident directory around any provided delegate directory, to be used during NRT search.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.Fields in org.apache.lucene.store declared as Directory Modifier and Type Field Description protected Directory
FilterDirectory. in
Methods in org.apache.lucene.store that return Directory Modifier and Type Method Description Directory
FilterDirectory. getDelegate()
Return the wrappedDirectory
.Directory
FileSwitchDirectory. getPrimaryDir()
Return the primary directoryDirectory
FileSwitchDirectory. getSecondaryDir()
Return the secondary directorystatic Directory
FilterDirectory. unwrap(Directory dir)
Get the wrapped instance bydir
as long as this reader is an instance ofFilterDirectory
.Methods in org.apache.lucene.store with parameters of type Directory Modifier and Type Method Description void
Directory. copyFrom(Directory from, String src, String dest, IOContext context)
Copies an existingsrc
file from directoryfrom
to a non-existent filedest
in this directory.void
LockValidatingDirectoryWrapper. copyFrom(Directory from, String src, String dest, IOContext context)
void
TrackingDirectoryWrapper. copyFrom(Directory from, String src, String dest, IOContext context)
Lock
FSLockFactory. obtainLock(Directory dir, String lockName)
abstract Lock
LockFactory. obtainLock(Directory dir, String lockName)
Return a new obtained Lock instance identified by lockName.Lock
NoLockFactory. obtainLock(Directory dir, String lockName)
Lock
SingleInstanceLockFactory. obtainLock(Directory dir, String lockName)
Lock
VerifyingLockFactory. obtainLock(Directory dir, String lockName)
static Directory
FilterDirectory. unwrap(Directory dir)
Get the wrapped instance bydir
as long as this reader is an instance ofFilterDirectory
.Constructors in org.apache.lucene.store with parameters of type Directory Constructor Description FileSwitchDirectory(Set<String> primaryExtensions, Directory primaryDir, Directory secondaryDir, boolean doClose)
FilterDirectory(Directory in)
Sole constructor, typically called from sub-classes.LockValidatingDirectoryWrapper(Directory in, Lock writeLock)
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 SleepingLockFactorySleepingLockWrapper(Directory delegate, long lockWaitTimeout, long pollInterval)
Create a new SleepingLockFactoryTrackingDirectoryWrapper(Directory in)
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Uses of Directory in org.apache.lucene.util
Methods in org.apache.lucene.util that return Directory Modifier and Type Method Description Directory
OfflineSorter. getDirectory()
Returns theDirectory
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 Class<? extends Directory>
CommandLineUtil. loadDirectoryClass(String clazzName)
Loads a specific Directory implementationMethods in org.apache.lucene.util with parameters of type Directory Modifier and Type Method Description static void
IOUtils. deleteFiles(Directory dir, Collection<String> names)
Deletes all given file names.static void
IOUtils. deleteFilesIgnoringExceptions(Directory dir, String... files)
static void
IOUtils. deleteFilesIgnoringExceptions(Directory dir, Collection<String> files)
Deletes all given files, suppressing all thrown IOExceptions.Constructors in org.apache.lucene.util with parameters of type Directory Constructor Description FileDeleter(Directory directory, BiConsumer<FileDeleter.MsgType,String> messenger)
Create a new FileDeleter with a messenger consumes various verbose messagesOfflineSorter(Directory dir, String tempFileNamePrefix)
Defaults constructor.OfflineSorter(Directory dir, String tempFileNamePrefix, Comparator<BytesRef> comparator)
Defaults constructor with a custom comparator.OfflineSorter(Directory dir, String tempFileNamePrefix, Comparator<BytesRef> comparator, OfflineSorter.BufferSize ramBufferSize, int maxTempfiles, int valueLength, ExecutorService exec, int maxPartitionsInRAM)
All-details constructor. -
Uses of Directory in org.apache.lucene.util.bkd
Constructors in org.apache.lucene.util.bkd with parameters of type Directory Constructor Description BKDRadixSelector(BKDConfig config, int maxPointsSortInHeap, Directory tempDir, String tempFileNamePrefix)
Sole constructor.BKDWriter(int maxDoc, Directory tempDir, String tempFileNamePrefix, BKDConfig config, double maxMBSortInHeap, long totalPointCount)
OfflinePointReader(BKDConfig config, Directory tempDir, String tempFileName, long start, long length, byte[] reusableBuffer)
OfflinePointWriter(BKDConfig config, Directory tempDir, String tempFileNamePrefix, String desc, long expectedCount)
Create a new writer with an unknown number of incoming points
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