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package de.lmu.ifi.dbs.elki.database.datastore.memory;
/*
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 <http://www.gnu.org/licenses/>.
*/
import gnu.trove.map.TIntDoubleMap;
import gnu.trove.map.hash.TIntDoubleHashMap;
import de.lmu.ifi.dbs.elki.database.datastore.WritableDoubleDataStore;
import de.lmu.ifi.dbs.elki.database.ids.DBIDRef;
import de.lmu.ifi.dbs.elki.database.ids.DBIDUtil;
/**
* Writable data store for double values.
*
* @author Erich Schubert
*/
public class MapIntegerDBIDDoubleStore implements WritableDoubleDataStore {
/**
* Data storage.
*/
private TIntDoubleMap map;
/**
* Constructor.
*
* @param size Expected size
*/
public MapIntegerDBIDDoubleStore(int size) {
this(size, Double.NaN);
}
/**
* Constructor.
*
* @param size Expected size
* @param def Default value
*/
public MapIntegerDBIDDoubleStore(int size, double def) {
super();
map = new TIntDoubleHashMap(size, 0.5f, Integer.MIN_VALUE, def);
}
@Override
@Deprecated
public Double get(DBIDRef id) {
return Double.valueOf(map.get(DBIDUtil.asInteger(id)));
}
@Override
public double doubleValue(DBIDRef id) {
return map.get(DBIDUtil.asInteger(id));
}
@Override
public String getLongName() {
return "raw";
}
@Override
public String getShortName() {
return "raw";
}
@Override
@Deprecated
public Double put(DBIDRef id, Double value) {
return Double.valueOf(map.put(DBIDUtil.asInteger(id), value.doubleValue()));
}
@Override
public void destroy() {
map.clear();
map = null;
}
@Override
public void delete(DBIDRef id) {
map.remove(DBIDUtil.asInteger(id));
}
@Override
public double putDouble(DBIDRef id, double value) {
return map.put(DBIDUtil.asInteger(id), value);
}
@Override
public double put(DBIDRef id, double value) {
return map.put(DBIDUtil.asInteger(id), value);
}
}
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