alluxio.worker.block.evictor

Class BlockTransferInfo

java.lang.Object

alluxio.worker.block.evictor.BlockTransferInfo

@ThreadSafe
public class BlockTransferInfo
extends Object

Provides information about the transfer of a block.

Method Summary

Modifier and Type	Method and Description
static BlockTransferInfo	createMove(BlockStoreLocation srcLocation, long srcBlockId, BlockStoreLocation dstLocation) Creates a new instance of BlockTransferInfo for moving a block.
static BlockTransferInfo	createSwap(BlockStoreLocation srcLocation, long srcBlockId, BlockStoreLocation dstLocation, long dstBlockId) Creates a new instance of BlockTransferInfo for swapping two blocks.
long	getDstBlockId()
BlockStoreLocation	getDstLocation()
long	getSrcBlockId()
BlockStoreLocation	getSrcLocation()
boolean	isSwap()
String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

createMove

public static BlockTransferInfo createMove(BlockStoreLocation srcLocation,
                                           long srcBlockId,
                                           BlockStoreLocation dstLocation)

Creates a new instance of BlockTransferInfo for moving a block.

Parameters:

srcLocation - the source BlockStoreLocation

srcBlockId - the source block id

dstLocation - the destination BlockStoreLocation

Returns:

the transfer info object

createSwap

public static BlockTransferInfo createSwap(BlockStoreLocation srcLocation,
                                           long srcBlockId,
                                           BlockStoreLocation dstLocation,
                                           long dstBlockId)

Creates a new instance of BlockTransferInfo for swapping two blocks.

Parameters:

srcLocation - the source BlockStoreLocation

srcBlockId - the source block id

dstLocation - the destination BlockStoreLocation

dstBlockId - the destination block id

Returns:

the transfer info object

getSrcBlockId

public long getSrcBlockId()

Returns:

the source block id

getDstBlockId

public long getDstBlockId()

Returns:

the destination block id

isSwap

public boolean isSwap()

Returns:

true if this tranfer info is for a swap operation

getSrcLocation

public BlockStoreLocation getSrcLocation()

Returns:

the source BlockStoreLocation

getDstLocation

public BlockStoreLocation getDstLocation()

Returns:

the destination BlockStoreLocation

toString

public String toString()

Overrides:

toString in class Object