org.apache.hadoop.hdfs.protocol

类 DataTransferProtocol.PipelineAck

java.lang.Object

org.apache.hadoop.hdfs.protocol.DataTransferProtocol.PipelineAck

所有已实现的接口:

Writable

封闭接口:

DataTransferProtocol

public static class DataTransferProtocol.PipelineAck
extends Object
implements Writable

reply

字段概要

字段

限定符和类型	字段和说明
static long	UNKOWN_SEQNO

构造器概要

构造器

构造器和说明
DataTransferProtocol.PipelineAck() default constructor
DataTransferProtocol.PipelineAck(long seqno, short[] replies) Constructor

方法概要

方法

限定符和类型	方法和说明
short	getNumOfReplies() Get the number of replies
short	getReply(int i) get the ith reply
long	getSeqno() Get the sequence number
boolean	isSuccess() Check if this ack contains error status
void	readFields(DataInput in) Writable interface
String	toString()
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, wait, wait, wait

字段详细资料

UNKOWN_SEQNO

public static final long UNKOWN_SEQNO

另请参阅:

常量字段值

构造器详细资料

DataTransferProtocol.PipelineAck

public DataTransferProtocol.PipelineAck()

default constructor

DataTransferProtocol.PipelineAck

public DataTransferProtocol.PipelineAck(long seqno,
                                short[] replies)

Constructor

参数:

seqno - sequence number

replies - an array of replies

方法详细资料

getSeqno

public long getSeqno()

Get the sequence number

返回:

the sequence number

getNumOfReplies

public short getNumOfReplies()

Get the number of replies

返回:

the number of replies

getReply

public short getReply(int i)

get the ith reply

返回:

the the ith reply

isSuccess

public boolean isSuccess()

Check if this ack contains error status

返回:

true if all statuses are SUCCESS

readFields

public void readFields(DataInput in)
                throws IOException

Writable interface

指定者:

readFields 在接口中 Writable

参数:

in - DataInput to deseriablize this object from.

抛出:

IOException

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

toString

public String toString()

覆盖:

toString 在类中 Object