package de.lmu.ifi.dbs.elki.distance.distancefunction;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2013
Ludwig-Maximilians-Universität München
Lehr- und Forschungseinheit für Datenbanksysteme
ELKI Development Team
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU Affero General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Affero General Public License for more details.
You should have received a copy of the GNU Affero General Public License
along with this program. If not, see .
*/
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.database.relation.Relation;
import de.lmu.ifi.dbs.elki.distance.distancevalue.Distance;
import de.lmu.ifi.dbs.elki.index.Index;
import de.lmu.ifi.dbs.elki.index.preprocessed.localpca.FilteredLocalPCAIndex;
/**
* Interface for local PCA based preprocessors.
*
* @author Erich Schubert
*
* @apiviz.has Instance
*
* @param Database object type
* @param Distance type
*/
public interface FilteredLocalPCABasedDistanceFunction, P extends FilteredLocalPCAIndex super O>, D extends Distance> extends IndexBasedDistanceFunction {
/**
* Instantiate with a database to get the actual distance query.
*
* @param database
* @return Actual distance query.
*/
@Override
public Instance instantiate(Relation database);
/**
* Instance produced by the distance function.
*
* @author Erich Schubert
*
* @param Database object type
* @param Index type
* @param Distance type
*/
public static interface Instance, I extends Index, D extends Distance> extends IndexBasedDistanceFunction.Instance {
// No additional restrictions
}
}