org.apache.lucene.store
Class NIOFSDirectory
java.lang.Object
org.apache.lucene.store.Directory
org.apache.lucene.store.FSDirectory
org.apache.lucene.store.NIOFSDirectory
- All Implemented Interfaces:
- Closeable
public class NIOFSDirectory
- extends FSDirectory
An FSDirectory
implementation that uses
java.nio's FileChannel's positional read, which allows
multiple threads to read from the same file without
synchronizing.
This class only uses FileChannel when reading; writing
is achieved with SimpleFSDirectory.SimpleFSIndexOutput
.
NOTE: NIOFSDirectory is not recommended on Windows because of a bug
in how FileChannel.read is implemented in Sun's JRE.
Inside of the implementation the position is apparently
synchronized. See here
for details.
Methods inherited from class org.apache.lucene.store.FSDirectory |
close, deleteFile, fileExists, fileLength, fileModified, fileModified, getFile, getLockID, getReadChunkSize, initOutput, listAll, listAll, open, open, openInput, setReadChunkSize, sync, toString, touchFile |
NIOFSDirectory
public NIOFSDirectory(File path,
LockFactory lockFactory)
throws IOException
- Create a new NIOFSDirectory for the named location.
- Parameters:
path
- the path of the directorylockFactory
- the lock factory to use, or null for the default
(NativeFSLockFactory
);
- Throws:
IOException
NIOFSDirectory
public NIOFSDirectory(File path)
throws IOException
- Create a new NIOFSDirectory for the named location and
NativeFSLockFactory
.
- Parameters:
path
- the path of the directory
- Throws:
IOException
openInput
public IndexInput openInput(String name,
int bufferSize)
throws IOException
- Creates an IndexInput for the file with the given name.
- Overrides:
openInput
in class Directory
- Throws:
IOException
createOutput
public IndexOutput createOutput(String name)
throws IOException
- Creates an IndexOutput for the file with the given name.
- Specified by:
createOutput
in class Directory
- Throws:
IOException
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