org.cdlib.xtf.textEngine
Class FlippingDirectory
Object
Directory
FlippingDirectory
public class FlippingDirectory
- extends Directory
Represents a Lucene directory in every way except that it allows the
underlying directory pointer to be flipped. This facilitates warming
a directory in the background before flipping it to the foreground.
- Author:
- Martin Haye
Field Summary |
private Directory |
wrapped
|
Fields inherited from class Directory |
lockFactory |
Constructor Summary |
FlippingDirectory(Directory toWrap)
Wrap a directory to start with |
Methods inherited from class Directory |
copy |
Methods inherited from class Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
wrapped
private Directory wrapped
FlippingDirectory
public FlippingDirectory(Directory toWrap)
- Wrap a directory to start with
flipTo
public void flipTo(Directory other)
- Switch to a different underlying directory. Note that it should still
contain the same files, and thus should be the old directory with a
simply a different name.
clearLock
public void clearLock(String name)
throws IOException
- Overrides:
clearLock
in class Directory
- Throws:
IOException
close
public void close()
throws IOException
- Specified by:
close
in class Directory
- Throws:
IOException
createOutput
public IndexOutput createOutput(String name)
throws IOException
- Specified by:
createOutput
in class Directory
- Throws:
IOException
deleteFile
public void deleteFile(String name)
throws IOException
- Specified by:
deleteFile
in class Directory
- Throws:
IOException
fileExists
public boolean fileExists(String name)
throws IOException
- Specified by:
fileExists
in class Directory
- Throws:
IOException
fileLength
public long fileLength(String name)
throws IOException
- Specified by:
fileLength
in class Directory
- Throws:
IOException
fileModified
public long fileModified(String name)
throws IOException
- Specified by:
fileModified
in class Directory
- Throws:
IOException
getLockFactory
public LockFactory getLockFactory()
- Overrides:
getLockFactory
in class Directory
getLockID
public String getLockID()
- Overrides:
getLockID
in class Directory
list
public String[] list()
throws IOException
- Specified by:
list
in class Directory
- Throws:
IOException
makeLock
public Lock makeLock(String name)
- Overrides:
makeLock
in class Directory
openInput
public IndexInput openInput(String name)
throws IOException
- Specified by:
openInput
in class Directory
- Throws:
IOException
renameFile
public void renameFile(String from,
String to)
throws IOException
- Specified by:
renameFile
in class Directory
- Throws:
IOException
setLockFactory
public void setLockFactory(LockFactory lockFactory)
- Overrides:
setLockFactory
in class Directory
touchFile
public void touchFile(String name)
throws IOException
- Specified by:
touchFile
in class Directory
- Throws:
IOException