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

Packages that use Directory
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.

Uses of Directory in org.apache.lucene.index

Fields in org.apache.lucene.index declared as Directory
`protected Directory` `IndexModifier.directory` Deprecated.

Methods in org.apache.lucene.index that return Directory
`Directory` `FilterIndexReader.directory()`
`Directory` `IndexReader.directory()` Returns the directory associated with this index.
`Directory` `IndexWriter.getDirectory()` Returns the Directory used by this index.

Methods in org.apache.lucene.index with parameters of type Directory
`void` `IndexWriter.addIndexes(Directory[] dirs)` Merges all segments from an array of indexes into this index.
`void` `IndexWriter.addIndexesNoOptimize(Directory[] dirs)` Merges all segments from an array of indexes into this index.
`static boolean` `CheckIndex.check(Directory dir, boolean doFix)` Returns true if index is clean, else false.
`static long` `IndexReader.getCurrentVersion(Directory directory)` Reads version number from segments files.
`static boolean` `IndexReader.indexExists(Directory directory)` Returns `true` if an index exists at the specified directory.
`protected void` `IndexModifier.init(Directory directory, Analyzer analyzer, boolean create)` Deprecated. Initialize an IndexWriter.
`static boolean` `IndexReader.isLocked(Directory directory)` Returns `true` iff the index in the named directory is currently locked.
`static long` `IndexReader.lastModified(Directory directory2)` Returns the time the index in the named directory was last modified.
`static IndexReader` `IndexReader.open(Directory directory)` Returns an IndexReader reading the index in the given Directory.
`static IndexReader` `IndexReader.open(Directory directory, IndexDeletionPolicy deletionPolicy)` Expert: returns an IndexReader reading the index in the given Directory, with a custom `IndexDeletionPolicy`.
`String` `MergePolicy.MergeSpecification.segString(Directory dir)`
`static void` `IndexReader.unlock(Directory directory)` Forcibly unlocks the index in the named directory.

Constructors in org.apache.lucene.index with parameters of type Directory
`IndexModifier(Directory directory, Analyzer analyzer, boolean create)` Deprecated. Open an index with write access.
`IndexReader(Directory directory)` Deprecated. - use IndexReader()
`IndexWriter(Directory d, Analyzer a)` Constructs an IndexWriter for the index in `d`, first creating it if it does not already exist.
`IndexWriter(Directory d, Analyzer a, boolean create)` Constructs an IndexWriter for the index in `d`.
`IndexWriter(Directory d, boolean autoCommit, Analyzer a)` Constructs an IndexWriter for the index in `d`, first creating it if it does not already exist.
`IndexWriter(Directory d, boolean autoCommit, Analyzer a, boolean create)` Constructs an IndexWriter for the index in `d`.
`IndexWriter(Directory d, boolean autoCommit, Analyzer a, boolean create, IndexDeletionPolicy deletionPolicy)` Expert: constructs an IndexWriter with a custom `IndexDeletionPolicy`, for the index in `d`.
`IndexWriter(Directory d, boolean autoCommit, Analyzer a, IndexDeletionPolicy deletionPolicy)` Expert: constructs an IndexWriter with a custom `IndexDeletionPolicy`, for the index in `d`, first creating it if it does not already exist.

Uses of Directory in org.apache.lucene.search

Constructors in org.apache.lucene.search with parameters of type Directory
`IndexSearcher(Directory directory)` Creates a searcher searching the index in the provided directory.

Uses of Directory in org.apache.lucene.store

Subclasses of Directory in org.apache.lucene.store
`class` `FSDirectory` Straightforward implementation of `Directory` as a directory of files.
`class` `MMapDirectory` File-based `Directory` implementation that uses mmap for input.
`class` `RAMDirectory` A memory-resident `Directory` implementation.

Methods in org.apache.lucene.store with parameters of type Directory
`static void` `Directory.copy(Directory src, Directory dest, boolean closeDirSrc)` Copy contents of a directory src to a directory dest.

Constructors in org.apache.lucene.store with parameters of type Directory
`RAMDirectory(Directory dir)` Creates a new `RAMDirectory` instance from a different `Directory` implementation.

Uses of Directory in org.apache.lucene.util

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