org.apache.hadoop.dfs
Class LocatedBlocks

java.lang.Object
  org.apache.hadoop.dfs.LocatedBlocks

All Implemented Interfaces:

Writable

public class LocatedBlocks
extends Object
implements Writable

Collection of blocks with their locations and the file length.

Method Summary

org.apache.hadoop.dfs.LocatedBlock	get(int index) Get located block.
long	getFileLength()
List<org.apache.hadoop.dfs.LocatedBlock>	getLocatedBlocks() Get located blocks.
boolean	isUnderConstruction() Return ture if file was under construction when this LocatedBlocks was constructed, false otherwise.
int	locatedBlockCount() Get number of located blocks.
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	write(DataOutput out) Serialize the fields of this object to out.

Methods inherited from class java.lang.Object

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

Method Detail

getLocatedBlocks

public List<org.apache.hadoop.dfs.LocatedBlock> getLocatedBlocks()

Get located blocks.

get

public org.apache.hadoop.dfs.LocatedBlock get(int index)

Get located block.

locatedBlockCount

public int locatedBlockCount()

Get number of located blocks.

getFileLength

public long getFileLength()

isUnderConstruction

public boolean isUnderConstruction()

Return ture if file was under construction when this LocatedBlocks was constructed, false otherwise.

write

public void write(DataOutput out)
           throws IOException

Description copied from interface: Writable

Serialize the fields of this object to out.

Specified by:

write in interface Writable

Parameters:

out - DataOuput to serialize this object into.

Throws:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

Description copied from interface: Writable

Deserialize the fields of this object from in.

For efficiency, implementations should attempt to re-use storage in the existing object where possible.

Specified by:

readFields in interface Writable

Parameters:

in - DataInput to deseriablize this object from.

Throws:

IOException