org.apache.hadoop.examples

类 SleepJob.EmptySplit

java.lang.Object

org.apache.hadoop.examples.SleepJob.EmptySplit

所有已实现的接口:

Writable, InputSplit

封闭类:

SleepJob

public static class SleepJob.EmptySplit
extends Object
implements InputSplit

构造器概要

构造器

构造器和说明
SleepJob.EmptySplit()

方法概要

方法

限定符和类型	方法和说明
long	getLength() Get the total number of bytes in the data of the InputSplit.
String[]	getLocations() Get the list of hostnames where the input split is located.
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

SleepJob.EmptySplit

public SleepJob.EmptySplit()

方法详细资料

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

getLength

public long getLength()

从接口复制的说明: InputSplit

Get the total number of bytes in the data of the InputSplit.

指定者:

getLength 在接口中 InputSplit

返回:

the number of bytes in the input split.

getLocations

public String[] getLocations()

从接口复制的说明: InputSplit

Get the list of hostnames where the input split is located.

指定者:

getLocations 在接口中 InputSplit

返回:

list of hostnames where data of the InputSplit is located as an array of Strings.