org.iq80.leveldb.impl

Class Filename

java.lang.Object

org.iq80.leveldb.impl.Filename

public final class Filename
extends Object

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	Filename.FileInfo
static class	Filename.FileType

Method Summary

Modifier and Type	Method and Description
static String	currentFileName() Return the name of the current file.
static String	descriptorFileName(long number) Return the name of the descriptor file with the specified incarnation number.
static String	getCurrentFile(File databaseDir, Env env) Read "CURRENT" file, which contains a pointer to the current manifest file
static String	infoLogFileName() Return the name of the info log file.
static String	lockFileName() Return the name of the lock file.
static String	logFileName(long number) Return the name of the log file with the specified number.
static String	oldInfoLogFileName() Return the name of the old info log file.
static Filename.FileInfo	parseFileName(File file) If filename is a leveldb file, store the type of the file in *type.
static void	setCurrentFile(File databaseDir, long descriptorNumber, Env env) Make the CURRENT file point to the descriptor file with the specified number.
static String	sstTableFileName(long number) Return the deprecated name of the sstable with the specified number.
static String	tableFileName(long number) Return the name of the sstable with the specified number.
static String	tempFileName(long number) Return the name of a temporary file with the specified number.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

logFileName

public static String logFileName(long number)

Return the name of the log file with the specified number.

tableFileName

public static String tableFileName(long number)

Return the name of the sstable with the specified number.

sstTableFileName

public static String sstTableFileName(long number)

Return the deprecated name of the sstable with the specified number.

descriptorFileName

public static String descriptorFileName(long number)

Return the name of the descriptor file with the specified incarnation number.

currentFileName

public static String currentFileName()

Return the name of the current file.

lockFileName

public static String lockFileName()

Return the name of the lock file.

tempFileName

public static String tempFileName(long number)

Return the name of a temporary file with the specified number.

infoLogFileName

public static String infoLogFileName()

Return the name of the info log file.

oldInfoLogFileName

public static String oldInfoLogFileName()

Return the name of the old info log file.

parseFileName

public static Filename.FileInfo parseFileName(File file)

If filename is a leveldb file, store the type of the file in *type. The number encoded in the filename is stored in *number. If the filename was successfully parsed, returns true. Else return false.

setCurrentFile

public static void setCurrentFile(File databaseDir,
                                  long descriptorNumber,
                                  Env env)
                           throws IOException

Make the CURRENT file point to the descriptor file with the specified number.

Throws:

IOException - on any IO exception

IllegalArgumentException - on invalid descriptorNumber

getCurrentFile

public static String getCurrentFile(File databaseDir,
                                    Env env)
                             throws IOException

Read "CURRENT" file, which contains a pointer to the current manifest file

Parameters:

databaseDir - DB base directory

env - system environment

Returns:

current manifest file

Throws:

IOException - on any IO exception

IllegalStateException - if file does not exist or invalid file content