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

Packages that use Directory
org.apache.lucene.benchmark.byTask | Benchmarking Lucene By Tasks.
org.apache.lucene.benchmark.byTask.tasks | Extendable benchmark tasks.
org.apache.lucene.facet.index | Indexing of document categories
org.apache.lucene.facet.taxonomy.directory | Taxonomy implemented using a Lucene-Index
org.apache.lucene.index | Code to maintain and access indices.
org.apache.lucene.misc | Miscellaneous index tools.
org.apache.lucene.search | Code to search indices.
org.apache.lucene.search.spell | Suggest alternate spellings for words.
org.apache.lucene.store | Binary i/o API, used for all index data.
org.apache.lucene.store.instantiated | InstantiatedIndex, alternative RAM store for small corpora.
org.apache.lucene.util | Some utility classes.

Uses of Directory in org.apache.lucene.benchmark.byTask

Methods in org.apache.lucene.benchmark.byTask that return Directory
`Directory` | `PerfRunData.getDirectory()`
`Directory` | `PerfRunData.getTaxonomyDir()`

Methods in org.apache.lucene.benchmark.byTask with parameters of type Directory
`void` | `PerfRunData.setDirectory(Directory directory)`

Uses of Directory in org.apache.lucene.benchmark.byTask.tasks

Methods in org.apache.lucene.benchmark.byTask.tasks with parameters of type Directory
`static IndexCommit` | `OpenReaderTask.findIndexCommit(Directory dir, String userData)`

Uses of Directory in org.apache.lucene.facet.index

Constructors in org.apache.lucene.facet.index with parameters of type Directory
`FacetsPayloadProcessorProvider(Directory dir, int[] ordinalMap, FacetIndexingParams indexingParams)` Construct FacetsPayloadProcessorProvider with FacetIndexingParams

Uses of Directory in org.apache.lucene.facet.taxonomy.directory

Methods in org.apache.lucene.facet.taxonomy.directory with parameters of type Directory
`void` | `DirectoryTaxonomyWriter.addTaxonomy(Directory taxoDir, DirectoryTaxonomyWriter.OrdinalMap map)` Takes the categories from the given taxonomy directory, and adds the missing ones to this taxonomy.
`protected IndexReader` | `DirectoryTaxonomyReader.openIndexReader(Directory directory)`
`protected IndexWriter` | `DirectoryTaxonomyWriter.openIndexWriter(Directory directory, IndexWriterConfig config)` Open internal index writer, which contains the taxonomy data.
`static void` | `DirectoryTaxonomyWriter.unlock(Directory directory)` Forcibly unlocks the taxonomy in the named directory.

Constructors in org.apache.lucene.facet.taxonomy.directory with parameters of type Directory
`DirectoryTaxonomyReader(Directory directory)` Open for reading a taxonomy stored in a given `Directory`.
`DirectoryTaxonomyWriter(Directory d)`
`DirectoryTaxonomyWriter(Directory directory, IndexWriterConfig.OpenMode openMode)` Creates a new instance with a default cached as defined by `DirectoryTaxonomyWriter.defaultTaxonomyWriterCache()`.
`DirectoryTaxonomyWriter(Directory directory, IndexWriterConfig.OpenMode openMode, TaxonomyWriterCache cache)` Construct a Taxonomy writer.

Uses of Directory in org.apache.lucene.index

Fields in org.apache.lucene.index declared as Directory
`protected Directory` | `ThreadedIndexingAndSearchingTestCase.dir`
`Directory` | `CheckIndex.Status.dir` Directory index is in.
`protected Directory` | `ConcurrentMergeScheduler.dir`
`Directory` | `SegmentInfo.dir`
`Directory` | `SegmentWriteState.directory`

Methods in org.apache.lucene.index that return Directory
`Directory` | `IndexReader.directory()` Returns the directory associated with this index.
`Directory` | `SegmentReader.directory()` Returns the directory this index resides in.
`Directory` | `FilterIndexReader.directory()`
`Directory` | `IndexWriter.getDirectory()` Returns the Directory used by this index.
`Directory` | `SnapshotDeletionPolicy.SnapshotCommitPoint.getDirectory()`
`Directory` | `MergePolicy.MergeException.getDirectory()` Returns the `Directory` of the index that hit the exception.
`abstract Directory` | `IndexCommit.getDirectory()` Returns the `Directory` for the index.
`Directory` | `CompoundFileWriter.getDirectory()` Returns the directory of the compound file.
`protected Directory` | `ThreadedIndexingAndSearchingTestCase.getDirectory(Directory in)`

Methods in org.apache.lucene.index with parameters of type Directory
`void` | `CompoundFileWriter.addFile(String file, Directory dir)` Same as `CompoundFileWriter.addFile(String)`, only for files that are found in an external `Directory`.
`void` | `RandomIndexWriter.addIndexes(Directory... dirs)`
`void` | `IndexWriter.addIndexes(Directory... dirs)` Adds all segments from an array of indexes into this index.
`void` | `IndexWriter.addIndexesNoOptimize(Directory... dirs)` Deprecated. use `IndexWriter.addIndexes(Directory...)` instead
`Collection<String>` | `SegmentInfos.files(Directory dir, boolean includeSegmentsFile)` Returns all file names referenced by SegmentInfo instances matching the provided Directory (ie files associated with any "external" segments are skipped).
`static SegmentReader` | `SegmentReader.get(boolean readOnly, Directory dir, SegmentInfo si, int readBufferSize, boolean doOpenStores, int termInfosIndexDivisor)`
`static Map<String,String>` | `IndexReader.getCommitUserData(Directory directory)` Deprecated. Call `IndexReader.getIndexCommit()` on an open IndexReader, and then call `IndexCommit.getUserData()`.
`static long` | `IndexReader.getCurrentVersion(Directory directory)` Deprecated. Use `IndexReader.getVersion()` on an opened IndexReader.
`protected Directory` | `ThreadedIndexingAndSearchingTestCase.getDirectory(Directory in)`
`PayloadProcessorProvider.DirPayloadProcessor` | `PayloadProcessorProvider.getDirProcessor(Directory dir)` Deprecated. Use `PayloadProcessorProvider.getReaderProcessor(org.apache.lucene.index.IndexReader)` instead. You can still select by `Directory`, if you retrieve the underlying directory from `IndexReader.directory()`.
`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 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` | `IndexReader.indexExists(Directory directory)` Returns `true` if an index exists at the specified directory.
`static boolean` | `IndexWriter.isLocked(Directory directory)` Returns `true` iff the index in the named directory is currently locked.
`static long` | `IndexReader.lastModified(Directory directory2)` Deprecated. If you need to track commit time of an index, you can store it in the commit data (see `IndexWriter.commit(Map)`
`static Collection<IndexCommit>` | `IndexReader.listCommits(Directory dir)` Returns all commit points that exist in the Directory.
`static IndexReader` | `IndexReader.open(Directory directory)` Returns a IndexReader reading the index in the given Directory, with readOnly=true.
`static IndexReader` | `IndexReader.open(Directory directory, boolean readOnly)` Deprecated. Write support will be removed in Lucene 4.0. Use `IndexReader.open(Directory)` instead
`static IndexReader` | `IndexReader.open(Directory directory, IndexDeletionPolicy deletionPolicy, boolean readOnly)` Deprecated. Write support will be removed in Lucene 4.0. Use `IndexReader.open(Directory)` instead
`static IndexReader` | `IndexReader.open(Directory directory, IndexDeletionPolicy deletionPolicy, boolean readOnly, int termInfosIndexDivisor)` Deprecated. Write support will be removed in Lucene 4.0. Use `IndexReader.open(Directory,int)` instead
`static IndexReader` | `IndexReader.open(Directory directory, int termInfosIndexDivisor)` Expert: Returns a IndexReader reading the index in the given Director and given termInfosIndexDivisor
`void` | `SegmentInfos.read(Directory directory)` This version of read uses the retry logic (for lock-less commits) to find the right segments file to load.
`void` | `SegmentInfos.read(Directory directory, String segmentFileName)` Read a particular segmentFileName.
`static long` | `SegmentInfos.readCurrentVersion(Directory directory)` Deprecated. Load the SegmentInfos and then call `SegmentInfos.getVersion()`.
`static Map<String,String>` | `PersistentSnapshotDeletionPolicy.readSnapshotsInfo(Directory dir)` Reads the snapshots information from the given `Directory`.
`String` | `MergePolicy.OneMerge.segString(Directory dir)`
`String` | `MergePolicy.MergeSpecification.segString(Directory dir)`
`void` | `IndexSorter.sort(Directory input, Directory output, String field)`
`void` | `MultiPassIndexSplitter.split(IndexReader input, Directory[] outputs, boolean seq)` Deprecated. use `MultiPassIndexSplitter.split(Version, IndexReader, Directory[], boolean)` instead. This method will be removed in Lucene 4.0.
`void` | `MultiPassIndexSplitter.split(Version version, IndexReader input, Directory[] outputs, boolean seq)` Split source index into multiple parts.
`String` | `SegmentInfos.toString(Directory directory)`
`String` | `SegmentInfo.toString(Directory dir, int pendingDelCount)` Used for debugging.
`static void` | `IndexWriter.unlock(Directory directory)` Forcibly unlocks the index in the named directory.
`void` | `FieldInfos.write(Directory d, String name)`

Constructors in org.apache.lucene.index with parameters of type Directory
`CheckIndex(Directory dir)` Create a new CheckIndex on the directory.
`CompoundFileWriter(Directory dir, String name)` Create the compound stream in the specified file.
`FieldInfos(Directory d, String name)` Construct a FieldInfos object using the directory and the name of the file IndexInput
`FieldNormModifier(Directory d, Similarity s)` Deprecated. Constructor for code that wishes to use this class programmatically If Similarity is null, kill the field norms.
`IndexUpgrader(Directory dir, IndexWriterConfig iwc, PrintStream infoStream, boolean deletePriorCommits)` Creates index upgrader on the given directory, using an `IndexWriter` using the given config.
`IndexUpgrader(Directory dir, Version matchVersion)` Creates index upgrader on the given directory, using an `IndexWriter` using the given `matchVersion`.
`IndexUpgrader(Directory dir, Version matchVersion, PrintStream infoStream, boolean deletePriorCommits)` Creates index upgrader on the given directory, using an `IndexWriter` using the given `matchVersion`.
`IndexWriter(Directory d, Analyzer a, boolean create, IndexDeletionPolicy deletionPolicy, IndexWriter.MaxFieldLength mfl)` Deprecated. use `IndexWriter.IndexWriter(Directory, IndexWriterConfig)` instead
`IndexWriter(Directory d, Analyzer a, boolean create, IndexWriter.MaxFieldLength mfl)` Deprecated. use `IndexWriter.IndexWriter(Directory, IndexWriterConfig)` instead
`IndexWriter(Directory d, Analyzer a, IndexDeletionPolicy deletionPolicy, IndexWriter.MaxFieldLength mfl)` Deprecated. use `IndexWriter.IndexWriter(Directory, IndexWriterConfig)` instead
`IndexWriter(Directory d, Analyzer a, IndexDeletionPolicy deletionPolicy, IndexWriter.MaxFieldLength mfl, IndexCommit commit)` Deprecated. use `IndexWriter.IndexWriter(Directory, IndexWriterConfig)` instead
`IndexWriter(Directory d, Analyzer a, IndexWriter.MaxFieldLength mfl)` Deprecated. use `IndexWriter.IndexWriter(Directory, IndexWriterConfig)` instead
`IndexWriter(Directory d, IndexWriterConfig conf)` Constructs a new IndexWriter per the settings given in `conf`.
`MergePolicy.MergeException(String message, Directory dir)`
`MergePolicy.MergeException(Throwable exc, Directory dir)`
`PersistentSnapshotDeletionPolicy(IndexDeletionPolicy primary, Directory dir, IndexWriterConfig.OpenMode mode, Version matchVersion)` `PersistentSnapshotDeletionPolicy` wraps another `IndexDeletionPolicy` to enable flexible snapshotting.
`PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Filter docsInFirstIndex)` Deprecated. use `PKIndexSplitter.PKIndexSplitter(Version, Directory, Directory, Directory, Filter)` instead. This constructor will be removed in Lucene 4.0.
`PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Filter docsInFirstIndex, IndexWriterConfig config1, IndexWriterConfig config2)`
`PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Term midTerm)` Deprecated. use `PKIndexSplitter.PKIndexSplitter(Version, Directory, Directory, Directory, Term)` instead. This constructor will be removed in Lucene 4.0.
`PKIndexSplitter(Directory input, Directory dir1, Directory dir2, Term midTerm, IndexWriterConfig config1, IndexWriterConfig config2)`
`PKIndexSplitter(Version version, Directory input, Directory dir1, Directory dir2, Filter docsInFirstIndex)` Split an index based on a `Filter`.
`PKIndexSplitter(Version version, Directory input, Directory dir1, Directory dir2, Term midTerm)` Split an index based on a given primary key term and a 'middle' term.
`RandomIndexWriter(Random r, Directory dir)` create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT and Whitespace+LowercasingAnalyzer
`RandomIndexWriter(Random r, Directory dir, Analyzer a)` create a RandomIndexWriter with a random config: Uses TEST_VERSION_CURRENT
`RandomIndexWriter(Random r, Directory dir, IndexWriterConfig c)` create a RandomIndexWriter with the provided config
`RandomIndexWriter(Random r, Directory dir, Version v, Analyzer a)` create a RandomIndexWriter with a random config
`SegmentInfo(String name, int docCount, Directory dir, boolean isCompoundFile, boolean hasSingleNormFile, boolean hasProx, boolean hasVectors)`
`SegmentInfos.FindSegmentsFile(Directory directory)`
`SegmentWriteState(PrintStream infoStream, Directory directory, String segmentName, FieldInfos fieldInfos, int numDocs, int termIndexInterval, org.apache.lucene.index.BufferedDeletes segDeletes)`

Uses of Directory in org.apache.lucene.misc

Methods in org.apache.lucene.misc with parameters of type Directory
`static void` | `GetTermInfo.getTermInfo(Directory dir, Term term)`

Uses of Directory in org.apache.lucene.search

Fields in org.apache.lucene.search declared as Directory
`protected static Directory` | `SearchEquivalenceTestBase.directory`

Methods in org.apache.lucene.search with parameters of type Directory
`long` | `NRTManager.TrackingIndexWriter.addIndexes(Directory... dirs)`

Constructors in org.apache.lucene.search with parameters of type Directory
`IndexSearcher(Directory path)` Deprecated. use `IndexSearcher.IndexSearcher(IndexReader)` instead.
`IndexSearcher(Directory path, boolean readOnly)` Deprecated. Use `IndexSearcher.IndexSearcher(IndexReader)` instead.
`SearcherManager(Directory dir, SearcherFactory searcherFactory)` Creates and returns a new SearcherManager from the given `Directory`.

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

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

Constructors in org.apache.lucene.search.spell with parameters of type Directory
`SpellChecker(Directory spellIndex)` Use the given directory as a spell checker index with a `LevensteinDistance` as the default `StringDistance`.
`SpellChecker(Directory spellIndex, StringDistance sd)` Use the given directory as a spell checker index.
`SpellChecker(Directory spellIndex, StringDistance sd, 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.store

Subclasses of Directory in org.apache.lucene.store
`class` | `DirectIOLinuxDirectory` An `Directory` implementation that uses the Linux-specific O_DIRECT flag to bypass all OS level caching.
`class` | `FileSwitchDirectory` Expert: A Directory instance that switches files between two other Directory instances.
`class` | `FSDirectory` Base class for Directory implementations that store index files in the file system.
`class` | `MMapDirectory` File-based `Directory` implementation that uses mmap for reading, and `FSDirectory.FSIndexOutput` for writing.
`class` | `MockDirectoryWrapper` This is a Directory Wrapper that adds methods intended to be used only by unit tests.
`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` | `RAMDirectory` A memory-resident `Directory` implementation.
`class` | `SimpleFSDirectory` A straightforward implementation of `FSDirectory` using java.io.RandomAccessFile.
`class` | `WindowsDirectory` Native `Directory` implementation for Microsoft Windows.

Methods in org.apache.lucene.store that return Directory
`Directory` | `FileSwitchDirectory.getPrimaryDir()` Return the primary directory
`Directory` | `FileSwitchDirectory.getSecondaryDir()` Return the secondary directory

Methods in org.apache.lucene.store with parameters of type Directory
`static void` | `Directory.copy(Directory src, Directory dest, boolean closeDirSrc)` Deprecated. should be replaced with calls to `copy(Directory, String, String)` for every file that needs copying. You can use the following code:
     IndexFileNameFilter filter = IndexFileNameFilter.getFilter();
     for (String file : src.listAll()) {
       if (filter.accept(null, file)) {
         src.copy(dest, file, file);
       }
     }
`void` | `MockDirectoryWrapper.copy(Directory to, String src, String dest)`
`void` | `Directory.copy(Directory to, String src, String dest)` Copies the file src to `Directory` to under the new file name dest.

Constructors in org.apache.lucene.store with parameters of type Directory
`FileSwitchDirectory(Set<String> primaryExtensions, Directory primaryDir, Directory secondaryDir, boolean doClose)`
`MockDirectoryWrapper(Random random, Directory delegate)`
`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
`RAMDirectory(Directory dir)` Creates a new `RAMDirectory` instance from a different `Directory` implementation.

Uses of Directory in org.apache.lucene.store.instantiated

Methods in org.apache.lucene.store.instantiated that return Directory
`Directory` | `InstantiatedIndexReader.directory()` Deprecated.

Uses of Directory in org.apache.lucene.util

Methods in org.apache.lucene.util that return types with arguments of type Directory
`static Class<? extends Directory>` | `CommandLineUtil.loadDirectoryClass(String clazzName)` Loads a specific Directory implementation

Methods in org.apache.lucene.util with parameters of type Directory
`static boolean` | `_TestUtil.anyFilesExceptWriteLock(Directory dir)`
`static CheckIndex.Status` | `_TestUtil.checkIndex(Directory dir)` This runs the CheckIndex tool on the index in.
`static MockDirectoryWrapper` | `LuceneTestCase.newDirectory(Directory d)` Returns a new Directory instance, with contents copied from the provided directory.
`static MockDirectoryWrapper` | `LuceneTestCase.newDirectory(Random r, Directory d)` Returns a new Directory instance, using the specified random with contents copied from the provided directory.
`void` | `BitVector.write(Directory d, String name)` Writes this vector to the file `name` in Directory `d`, in a format that can be read by the constructor `BitVector.BitVector(Directory, String)`.

Constructors in org.apache.lucene.util with parameters of type Directory
`BitVector(Directory d, String name)` Constructs a bit vector from the file `name` in Directory `d`, as written by the `BitVector.write(org.apache.lucene.store.Directory, java.lang.String)` method.

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