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package de.lmu.ifi.dbs.elki.database.query;
/*
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.database.relation.Relation;
/**
* Abstract query bound to a certain representation.
*
* @author Erich Schubert
*
* @param <O> Database object type
*/
public abstract class AbstractDataBasedQuery<O> implements DatabaseQuery {
/**
* The data to use for this query
*/
final protected Relation<? extends O> relation;
/**
* Database this query works on.
*
* @param relation Representation
*/
public AbstractDataBasedQuery(Relation<? extends O> relation) {
super();
this.relation = relation;
}
/**
* Give access to the underlying data query.
*
* @return data query instance
*/
public Relation<? extends O> getRelation() {
return relation;
}
}
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