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Diffstat (limited to 'src/de/lmu/ifi/dbs/elki/database/query/rknn/AbstractRKNNQuery.java')
-rw-r--r-- | src/de/lmu/ifi/dbs/elki/database/query/rknn/AbstractRKNNQuery.java | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/database/query/rknn/AbstractRKNNQuery.java b/src/de/lmu/ifi/dbs/elki/database/query/rknn/AbstractRKNNQuery.java new file mode 100644 index 00000000..7977c804 --- /dev/null +++ b/src/de/lmu/ifi/dbs/elki/database/query/rknn/AbstractRKNNQuery.java @@ -0,0 +1,61 @@ +package de.lmu.ifi.dbs.elki.database.query.rknn; +/* +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 java.util.List; + +import de.lmu.ifi.dbs.elki.database.ids.DBID; +import de.lmu.ifi.dbs.elki.database.query.AbstractDataBasedQuery; +import de.lmu.ifi.dbs.elki.database.query.DistanceResultPair; +import de.lmu.ifi.dbs.elki.database.query.distance.DistanceQuery; +import de.lmu.ifi.dbs.elki.distance.distancevalue.Distance; + +/** + * Instance for the query on a particular database. + * + * @author Erich Schubert + */ +public abstract class AbstractRKNNQuery<O, D extends Distance<D>> extends AbstractDataBasedQuery<O> implements RKNNQuery<O, D> { + /** + * Hold the distance function to be used. + */ + protected final DistanceQuery<O, D> distanceQuery; + + /** + * Constructor. + * + * @param distanceQuery distance query + */ + public AbstractRKNNQuery(DistanceQuery<O, D> distanceQuery) { + super(distanceQuery.getRelation()); + this.distanceQuery = distanceQuery; + } + + @Override + abstract public List<DistanceResultPair<D>> getRKNNForDBID(DBID id, int k); + + @Override + public D getDistanceFactory() { + return distanceQuery.getDistanceFactory(); + } +}
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