org.apache.hadoop.hdfs.protocol

类 BlockLocalPathInfo

java.lang.Object

org.apache.hadoop.hdfs.protocol.BlockLocalPathInfo

所有已实现的接口:

Writable

@InterfaceAudience.Private
@InterfaceStability.Evolving
public class BlockLocalPathInfo
extends Object
implements Writable

A block and the full path information to the block data file and the metadata file stored on the local file system.

构造器概要

构造器

构造器和说明
BlockLocalPathInfo()
BlockLocalPathInfo(Block b, String file, String metafile) Constructs BlockLocalPathInfo.

方法概要

方法

限定符和类型	方法和说明
String	getBlockPath() Get the Block data file.
String	getMetaPath() Get the Block metadata file.
long	getNumBytes() Get number of bytes in the block.
void	readFields(DataInput in) Deserialize the fields of this object from in.
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

BlockLocalPathInfo

public BlockLocalPathInfo()

BlockLocalPathInfo

public BlockLocalPathInfo(Block b,
                  String file,
                  String metafile)

Constructs BlockLocalPathInfo.

参数:

b - The block corresponding to this lock path info.

file - Block data file.

metafile - Metadata file for the block.

方法详细资料

getBlockPath

public String getBlockPath()

Get the Block data file.

返回:

Block data file.

getMetaPath

public String getMetaPath()

Get the Block metadata file.

返回:

Block metadata file.

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

getNumBytes

public long getNumBytes()

Get number of bytes in the block.

返回:

Number of bytes in the block.