public class FileSwitchDirectory extends Directory
Files with the specified extensions are placed in the primary directory; others are placed in the secondary directory. The provided Set must not change once passed to this class, and must allow multiple threads to call contains at once.
NOTE: this API is new and experimental and is subject to suddenly change in the next release.
isOpen, lockFactory| Constructor and Description |
|---|
FileSwitchDirectory(Set primaryExtensions,
Directory primaryDir,
Directory secondaryDir,
boolean doClose) |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Closes the store.
|
IndexOutput |
createOutput(String name)
Creates a new, empty file in the directory with the given name.
|
void |
deleteFile(String name)
Removes an existing file in the directory.
|
boolean |
fileExists(String name)
Returns true iff a file with the given name exists.
|
long |
fileLength(String name)
Returns the length of a file in the directory.
|
long |
fileModified(String name)
Returns the time the named file was last modified.
|
static String |
getExtension(String name)
Utility method to return a file's extension.
|
Directory |
getPrimaryDir()
Return the primary directory
|
Directory |
getSecondaryDir()
Return the secondary directory
|
String[] |
list()
List the files in the directory.
|
String[] |
listAll()
Returns an array of strings, one for each file in the
directory.
|
IndexInput |
openInput(String name)
Returns a stream reading an existing file.
|
void |
renameFile(String from,
String to)
Renames an existing file in the directory.
|
void |
sync(String name)
Ensure that any writes to this file are moved to
stable storage.
|
void |
touchFile(String name)
Set the modified time of an existing file to now.
|
clearLock, copy, ensureOpen, getLockFactory, getLockID, makeLock, openInput, setLockFactory, toStringpublic Directory getPrimaryDir()
public Directory getSecondaryDir()
public void close()
throws IOException
Directoryclose in class DirectoryIOExceptionpublic String[] listAll() throws IOException
DirectoryDirectory.list() this method does no
filtering of the contents in a directory, and it will
never return null (throws IOException instead).
Currently this method simply falls back to Directory.list() for Directory impls outside of Lucene's core &
contrib, but in 3.0 that method will be removed and
this method will become abstract.listAll in class DirectoryIOExceptionpublic String[] list() throws IOException
Directorylist in class DirectoryIOExceptionpublic static String getExtension(String name)
public boolean fileExists(String name) throws IOException
DirectoryfileExists in class DirectoryIOExceptionpublic long fileModified(String name) throws IOException
DirectoryfileModified in class DirectoryIOExceptionpublic void touchFile(String name) throws IOException
DirectorytouchFile in class DirectoryIOExceptionpublic void deleteFile(String name) throws IOException
DirectorydeleteFile in class DirectoryIOExceptionpublic void renameFile(String from, String to) throws IOException
DirectoryrenameFile in class DirectoryIOExceptionpublic long fileLength(String name) throws IOException
DirectoryfileLength in class DirectoryIOExceptionpublic IndexOutput createOutput(String name) throws IOException
DirectorycreateOutput in class DirectoryIOExceptionpublic void sync(String name) throws IOException
Directorysync in class DirectoryIOExceptionpublic IndexInput openInput(String name) throws IOException
DirectoryopenInput in class DirectoryIOExceptionCopyright © 2000-2012 Apache Software Foundation. All Rights Reserved.