edu.snu.coral.common

Interface KeyExtractor

All Superinterfaces:

Serializable

All Known Implementing Classes:

SparkKeyExtractor

public interface KeyExtractor
extends Serializable

Extracts a key from an element. Keys are used for partitioning.

Method Summary

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

Method Detail

extractKey

Object extractKey(Object element)

Extracts key.

Parameters:

element - Element to get the key from.

Returns:

The extracted key of the element.