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package de.lmu.ifi.dbs.elki.index;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2011
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 <http://www.gnu.org/licenses/>.
*/
import de.lmu.ifi.dbs.elki.data.type.TypeInformation;
import de.lmu.ifi.dbs.elki.database.relation.Relation;
import de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizable;
/**
* Factory interface for indexes.
*
* @author Erich Schubert
*
* @apiviz.stereotype factory,interface
* @apiviz.uses Index oneway - - «create»
*
* @param <V> Input object type
* @param <I> Index type
*/
public interface IndexFactory<V, I extends Index> extends Parameterizable {
/**
* Sets the database in the distance function of this index (if existing).
*
* @param relation the relation to index
*/
public I instantiate(Relation<V> relation);
/**
* Get the input type restriction used for negotiating the data query.
*
* @return Type restriction
*/
public TypeInformation getInputTypeRestriction();
}
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