edu.snu.coral.compiler.frontend.spark

Class SparkKeyExtractor

java.lang.Object

edu.snu.coral.compiler.frontend.spark.SparkKeyExtractor

All Implemented Interfaces:

KeyExtractor, Serializable

public final class SparkKeyExtractor
extends Object
implements KeyExtractor

Extracts the key from a KV element. For non-KV elements, the elements themselves become the key.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
SparkKeyExtractor()

Method Summary

Modifier and Type	Method and Description
Object	extractKey(Object element) Extracts key.

Methods inherited from class java.lang.Object

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

Constructor Detail

SparkKeyExtractor

public SparkKeyExtractor()

Method Detail

extractKey

public Object extractKey(Object element)

Description copied from interface: KeyExtractor

Extracts key.

Specified by:

extractKey in interface KeyExtractor

Parameters:

element - Element to get the key from.

Returns:

The extracted key of the element.