public abstract class BaseDirectory extends Directory
Directory
that uses a LockFactory
for locking.Modifier and Type | Field and Description |
---|---|
protected boolean |
isOpen |
protected LockFactory |
lockFactory
Holds the LockFactory instance (implements locking for
this Directory instance).
|
Modifier | Constructor and Description |
---|---|
protected |
BaseDirectory(LockFactory lockFactory)
Sole constructor.
|
Modifier and Type | Method and Description |
---|---|
protected void |
ensureOpen()
Ensures this directory is still open.
|
Lock |
obtainLock(String name)
Acquires and returns a
Lock for a file with the given name. |
String |
toString() |
close, copyFrom, createOutput, createTempOutput, deleteFile, fileLength, getPendingDeletions, getTempFileName, listAll, openChecksumInput, openInput, rename, sync, syncMetaData
protected volatile boolean isOpen
protected final LockFactory lockFactory
protected BaseDirectory(LockFactory lockFactory)
public final Lock obtainLock(String name) throws IOException
Directory
Lock
for a file with the given name.obtainLock
in class Directory
name
- the name of the lock fileLockObtainFailedException
- (optional specific exception) if the lock could
not be obtained because it is currently held elsewhere.IOException
- if any i/o error occurs attempting to gain the lockprotected final void ensureOpen() throws AlreadyClosedException
Directory
ensureOpen
in class Directory
AlreadyClosedException
- if this directory is closed.Copyright © 2000-2020 Apache Software Foundation. All Rights Reserved.