de.hpi.fgis.dude.util.sorting.sortingkey
Interface Subkey

All Superinterfaces:

AutoJsonable, Comparator<DuDeObject>

All Known Implementing Classes:

AbstractSubkey, NumberBasedSubkey, TextBasedSubkey

public interface Subkey
extends Comparator<DuDeObject>, AutoJsonable

Subkey is an interface that is used within the SortingKey implementation. Each Subkey defines a part of this sorting key.

Author:

Matthias Pohl, Arvid Heise

Method Summary

JsonArray

getSubkeyValue(DuDeObject obj) Returns a JsonArray that collects all relevant values for the subkey of the passed DuDeObject.

Methods inherited from interface java.util.Comparator

compare, equals

Method Detail

getSubkeyValue

JsonArray getSubkeyValue(DuDeObject obj)

Returns a JsonArray that collects all relevant values for the subkey of the passed DuDeObject.

Parameters:

obj - The object from which the sub-key shall be returned.

Returns:

The JsonArray collecting all relevant values of the sub-key.