tachyon.master

Class RawTables

java.lang.Object

tachyon.master.ImageWriter

tachyon.master.RawTables

public class RawTables
extends ImageWriter

All Raw Table related info in MasterInfo.

Constructor Summary

Constructors

Constructor and Description
RawTables()

Method Summary

Methods

Modifier and Type	Method and Description
boolean	addRawTable(int tableId, int columns, ByteBuffer metadata)
boolean	delete(int tableId)
boolean	exist(int inodeId) Test if the raw table exist or not.
int	getColumns(int tableId) Get the number of the columns of a raw table.
ByteBuffer	getMetadata(int tableId)
Pair<Integer,ByteBuffer>	getTableInfo(int tableId) Get the raw table info.
void	updateMetadata(int tableId, ByteBuffer metadata)
void	writeImage(com.fasterxml.jackson.databind.ObjectWriter objWriter, DataOutputStream dos)

Methods inherited from class tachyon.master.ImageWriter

writeElement

Methods inherited from class java.lang.Object

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

Constructor Detail

RawTables

public RawTables()

Method Detail

addRawTable

public boolean addRawTable(int tableId,
                  int columns,
                  ByteBuffer metadata)
                    throws TachyonException

Throws:

TachyonException

delete

public boolean delete(int tableId)

exist

public boolean exist(int inodeId)

Test if the raw table exist or not.

Parameters:

inodeId - the raw table id.

Returns:

true if the table exists, false otherwise.

getColumns

public int getColumns(int tableId)

Get the number of the columns of a raw table.

Parameters:

inodeId - the inode id of the raw table.

Returns:

the number of the columns, -1 if the table does not exist.

getMetadata

public ByteBuffer getMetadata(int tableId)

getTableInfo

public Pair<Integer,ByteBuffer> getTableInfo(int tableId)

Get the raw table info.

Parameters:

inodeId - the raw table id.

Returns:

if the table exist, null otherwise.

updateMetadata

public void updateMetadata(int tableId,
                  ByteBuffer metadata)
                    throws TachyonException

Throws:

TachyonException

writeImage

public void writeImage(com.fasterxml.jackson.databind.ObjectWriter objWriter,
              DataOutputStream dos)
                throws IOException

Throws:

IOException