com.aliyun.odps.exec

Class InputSplit

java.lang.Object

com.aliyun.odps.exec.InputSplit

public abstract class InputSplit
extends Object

InputSplit represents the data to be processed by an individual mapper.

Typically, it presents a byte-oriented view on the input and is the responsibility of RecordReader of the job to process this and present a record-oriented view.

See Also:

InputFormat

Constructor Summary

Constructors

Constructor and Description
InputSplit()

Method Summary

Modifier and Type	Method and Description
abstract long	getLength() Get the total number of bytes in the data of the InputSplit.
abstract String[]	getLocations() Get the list of hostnames where the input split is located.

Methods inherited from class java.lang.Object

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

Constructor Detail

InputSplit

public InputSplit()

Method Detail

getLength

public abstract long getLength()
                        throws IOException

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

Returns:

the number of bytes in the input split.

Throws:

IOException

getLocations

public abstract String[] getLocations()
                               throws IOException

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

Returns:

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

Throws:

IOException