org.apache.hadoop.hdfs.protocol

类 LocatedBlock

java.lang.Object

org.apache.hadoop.hdfs.protocol.LocatedBlock

所有已实现的接口:

Writable

public class LocatedBlock
extends Object
implements Writable

A LocatedBlock is a pair of Block, DatanodeInfo[] objects. It tells where to find a Block.

构造器概要

构造器

构造器和说明
LocatedBlock()
LocatedBlock(Block b, DatanodeInfo[] locs)
LocatedBlock(Block b, DatanodeInfo[] locs, long startOffset)
LocatedBlock(Block b, DatanodeInfo[] locs, long startOffset, boolean corrupt)

方法概要

方法

限定符和类型	方法和说明
Block	getBlock()
long	getBlockSize()
Token<BlockTokenIdentifier>	getBlockToken()
DatanodeInfo[]	getLocations()
long	getStartOffset()
boolean	isCorrupt()
void	readFields(DataInput in) Deserialize the fields of this object from in.
void	setBlockToken(Token<BlockTokenIdentifier> token)
void	write(DataOutput out) Serialize the fields of this object to out.

从类继承的方法 java.lang.Object

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

构造器详细资料

LocatedBlock

public LocatedBlock()

LocatedBlock

public LocatedBlock(Block b,
            DatanodeInfo[] locs)

LocatedBlock

public LocatedBlock(Block b,
            DatanodeInfo[] locs,
            long startOffset)

LocatedBlock

public LocatedBlock(Block b,
            DatanodeInfo[] locs,
            long startOffset,
            boolean corrupt)

方法详细资料

getBlockToken

public Token<BlockTokenIdentifier> getBlockToken()

setBlockToken

public void setBlockToken(Token<BlockTokenIdentifier> token)

getBlock

public Block getBlock()

getLocations

public DatanodeInfo[] getLocations()

getStartOffset

public long getStartOffset()

getBlockSize

public long getBlockSize()

isCorrupt

public boolean isCorrupt()

write

public void write(DataOutput out)
           throws IOException

从接口复制的说明: Writable

Serialize the fields of this object to out.

指定者:

write 在接口中 Writable

参数:

out - DataOuput to serialize this object into.

抛出:

IOException

readFields

public void readFields(DataInput in)
                throws IOException

从接口复制的说明: Writable

Deserialize the fields of this object from in.

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

指定者:

readFields 在接口中 Writable

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException