org.apache.hadoop.hdfs.server.balancer
Class MovedBlocks.Locations<L>

java.lang.Object
  org.apache.hadoop.hdfs.server.balancer.MovedBlocks.Locations<L>

Direct Known Subclasses:

Dispatcher.DBlock

Enclosing class:

MovedBlocks<L>

public static class MovedBlocks.Locations<L>
extends Object

A class for keeping track of a block and its locations

Field Summary

protected List<L>

locations The locations of the replicas of the block.

Constructor Summary

MovedBlocks.Locations(org.apache.hadoop.hdfs.protocol.Block block)

Method Summary

void	addLocation(L loc) add a location
void	clearLocations() clean block locations
org.apache.hadoop.hdfs.protocol.Block	getBlock()
List<L>	getLocations()
long	getNumBytes()
boolean	isLocatedOn(L loc)

Methods inherited from class java.lang.Object

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

Field Detail

locations

protected final List<L> locations

The locations of the replicas of the block.

Constructor Detail

MovedBlocks.Locations

public MovedBlocks.Locations(org.apache.hadoop.hdfs.protocol.Block block)

Method Detail

clearLocations

public void clearLocations()

clean block locations

addLocation

public void addLocation(L loc)

add a location

isLocatedOn

public boolean isLocatedOn(L loc)

Returns:

if the block is located on the given location.

getLocations

public List<L> getLocations()

Returns:

its locations

getBlock

public org.apache.hadoop.hdfs.protocol.Block getBlock()

getNumBytes

public long getNumBytes()