public class BlockDirectory extends FilterDirectory implements ShutdownAwareDirectory
| Modifier and Type | Field and Description |
|---|---|
static long |
BLOCK_MOD |
static long |
BLOCK_SHIFT |
static int |
BLOCK_SIZE |
static Cache |
NO_CACHE |
in| Constructor and Description |
|---|
BlockDirectory(String dirName,
Directory directory,
Cache cache,
Set<String> blockCacheFileTypes,
boolean blockCacheReadEnabled,
boolean blockCacheWriteEnabled) |
BlockDirectory(String dirName,
Directory directory,
Cache cache,
Set<String> blockCacheFileTypes,
boolean blockCacheReadEnabled,
boolean blockCacheWriteEnabled,
boolean cacheMerges,
boolean cacheReadOnce) |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Closes the store.
|
void |
closeOnShutdown() |
IndexOutput |
createOutput(String name,
IOContext context)
Creates a new, empty file in the directory with the given name.
|
void |
deleteFile(String name)
Removes an existing file in the directory.
|
static long |
getBlock(long pos) |
Cache |
getCache()
Expert: mostly for tests
|
static long |
getPosition(long pos) |
static long |
getRealPosition(long block,
long positionInBlock) |
boolean |
isBlockCacheReadEnabled() |
boolean |
isBlockCacheWriteEnabled() |
IndexInput |
openInput(String name,
IOContext context)
Returns a stream reading an existing file.
|
createTempOutput, fileLength, getDelegate, listAll, obtainLock, rename, sync, syncMetaData, toString, unwrapcopyFrom, ensureOpen, openChecksumInput, renameFilepublic static final long BLOCK_SHIFT
public static final int BLOCK_SIZE
public static final long BLOCK_MOD
public BlockDirectory(String dirName, Directory directory, Cache cache, Set<String> blockCacheFileTypes, boolean blockCacheReadEnabled, boolean blockCacheWriteEnabled) throws IOException
IOExceptionpublic BlockDirectory(String dirName, Directory directory, Cache cache, Set<String> blockCacheFileTypes, boolean blockCacheReadEnabled, boolean blockCacheWriteEnabled, boolean cacheMerges, boolean cacheReadOnce) throws IOException
IOExceptionpublic static long getBlock(long pos)
public static long getPosition(long pos)
public static long getRealPosition(long block, long positionInBlock)
public IndexInput openInput(String name, IOContext context) throws IOException
DirectoryThrows FileNotFoundException or NoSuchFileException
if the file does not exist.
openInput in class FilterDirectoryIOExceptionpublic void closeOnShutdown() throws IOException
closeOnShutdown in interface ShutdownAwareDirectoryIOExceptionpublic void close() throws IOException
Directoryclose in interface Closeableclose in interface AutoCloseableclose in class FilterDirectoryIOExceptionpublic IndexOutput createOutput(String name, IOContext context) throws IOException
DirectorycreateOutput in class FilterDirectoryIOExceptionpublic void deleteFile(String name) throws IOException
DirectorydeleteFile in class FilterDirectoryIOExceptionpublic boolean isBlockCacheReadEnabled()
public boolean isBlockCacheWriteEnabled()