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package de.lmu.ifi.dbs.elki.database.datastore;
/*
This file is part of ELKI:
Environment for Developing KDD-Applications Supported by Index-Structures
Copyright (C) 2012
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.ids.DBIDs;
/**
* Storage utility class. Mostly a shorthand for
* {@link DataStoreFactory#FACTORY}.
*
* @author Erich Schubert
*
* @apiviz.landmark
* @apiviz.composedOf de.lmu.ifi.dbs.elki.database.datastore.DataStoreFactory
*/
public final class DataStoreUtil {
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param <T> stored data type
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @param dataclass class to store
* @return new data store
*/
public static <T> WritableDataStore<T> makeStorage(DBIDs ids, int hints, Class<? super T> dataclass) {
return DataStoreFactory.FACTORY.makeStorage(ids, hints, dataclass);
}
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @return new data store
*/
public static WritableDBIDDataStore makeDBIDStorage(DBIDs ids, int hints) {
return DataStoreFactory.FACTORY.makeDBIDStorage(ids, hints);
}
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @return new data store
*/
public static WritableDoubleDataStore makeDoubleStorage(DBIDs ids, int hints) {
return DataStoreFactory.FACTORY.makeDoubleStorage(ids, hints);
}
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @param def Default value
* @return new data store
*/
public static WritableDoubleDataStore makeDoubleStorage(DBIDs ids, int hints, double def) {
return DataStoreFactory.FACTORY.makeDoubleStorage(ids, hints, def);
}
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @return new data store
*/
public static WritableIntegerDataStore makeIntegerStorage(DBIDs ids, int hints) {
return DataStoreFactory.FACTORY.makeIntegerStorage(ids, hints);
}
/**
* Make a new storage, to associate the given ids with an object of class
* dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @param def Default value
* @return new data store
*/
public static WritableIntegerDataStore makeIntegerStorage(DBIDs ids, int hints, int def) {
return DataStoreFactory.FACTORY.makeIntegerStorage(ids, hints, def);
}
/**
* Make a new record storage, to associate the given ids with an object of
* class dataclass.
*
* @param ids DBIDs to store data for
* @param hints Hints for the storage manager
* @param dataclasses classes to store
* @return new record store
*/
public static WritableRecordStore makeRecordStorage(DBIDs ids, int hints, Class<?>... dataclasses) {
return DataStoreFactory.FACTORY.makeRecordStorage(ids, hints, dataclasses);
}
}
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