Package 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 java.lang.Object

A class for keeping track of a block and its locations

Field Summary

Fields

Modifier and Type	Field	Description
protected java.util.List<L>	locations	The locations of the replicas of the block.

Constructor Summary

Constructors

Constructor	Description
Locations(org.apache.hadoop.hdfs.protocol.Block block)

Method Summary

Modifier and Type	Method	Description
void	addLocation(L loc)	add a location
void	clearLocations()	clean block locations
org.apache.hadoop.hdfs.protocol.Block	getBlock()
java.util.List<L>	getLocations()
long	getNumBytes()
boolean	isLocatedOn(L loc)
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

locations

protected final java.util.List<L> locations

The locations of the replicas of the block.

Constructor Detail

Locations

public 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 java.util.List<L> getLocations()

Returns:

its locations

getBlock

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

getNumBytes

public long getNumBytes()

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object