de.lmu.ifi.dbs.elki.data
Interface DatabaseObjectGroup

All Superinterfaces:

Iterable<Integer>

All Known Implementing Classes:

Cluster, DatabaseObjectGroupArray, DatabaseObjectGroupCollection

public interface DatabaseObjectGroup
extends Iterable<Integer>

Interface for a collection of database references (IDs). The two main implementations are DatabaseObjectGroupCollection and DatabaseObjectGroupArray backed by an array or Collection respectively. Performance varies depending on the actual choice.

Author:

Erich Schubert

Method Summary

Collection<Integer>	getIDs() Retrieve collection access to the IDs
Iterator<Integer>	iterator() Retrieve Iterator access to the IDs.
int	size() Retrieve the collection / data size.

Method Detail

getIDs

Collection<Integer> getIDs()

Retrieve collection access to the IDs

Returns:

a collection of IDs

iterator

Iterator<Integer> iterator()

Retrieve Iterator access to the IDs.

Specified by:

iterator in interface Iterable<Integer>

Returns:

an iterator for the IDs

size

int size()

Retrieve the collection / data size.

Returns:

collection size