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package de.lmu.ifi.dbs.elki.data.type;
/*
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.data.BitVector;
import de.lmu.ifi.dbs.elki.data.ClassLabel;
import de.lmu.ifi.dbs.elki.data.DoubleVector;
import de.lmu.ifi.dbs.elki.data.ExternalID;
import de.lmu.ifi.dbs.elki.data.LabelList;
import de.lmu.ifi.dbs.elki.data.NumberVector;
import de.lmu.ifi.dbs.elki.data.SparseFloatVector;
import de.lmu.ifi.dbs.elki.data.model.Model;
import de.lmu.ifi.dbs.elki.data.spatial.PolygonsObject;
import de.lmu.ifi.dbs.elki.database.ids.DBID;
import de.lmu.ifi.dbs.elki.database.ids.DBIDFactory;
import de.lmu.ifi.dbs.elki.math.linearalgebra.Matrix;
import de.lmu.ifi.dbs.elki.math.linearalgebra.Vector;
import de.lmu.ifi.dbs.elki.persistent.ByteArrayUtil;
/**
* Utility package containing various common types
*
* @author Erich Schubert
*
* @apiviz.has TypeInformation oneway - -
* @apiviz.landmark
*/
public final class TypeUtil {
/**
* Input type for algorithms that accept anything
*/
public static final SimpleTypeInformation<Object> ANY = new SimpleTypeInformation<Object>(Object.class);
/**
* Database IDs
*/
public static final SimpleTypeInformation<DBID> DBID = new SimpleTypeInformation<DBID>(DBID.class, DBIDFactory.FACTORY.getDBIDSerializer());
/**
* A string
*/
public static final SimpleTypeInformation<String> STRING = new SimpleTypeInformation<String>(String.class, ByteArrayUtil.STRING_SERIALIZER);
/**
* A class label
*/
public static final SimpleTypeInformation<ClassLabel> CLASSLABEL = new SimpleTypeInformation<ClassLabel>(ClassLabel.class);
/**
* A list of labels.
*/
public static final SimpleTypeInformation<LabelList> LABELLIST = new SimpleTypeInformation<LabelList>(LabelList.class);
/**
* Either class label, object labels or a string - anything that will be
* accepted by
* {@link de.lmu.ifi.dbs.elki.utilities.DatabaseUtil#guessObjectLabelRepresentation}
*/
public static final TypeInformation GUESSED_LABEL = new AlternativeTypeInformation(LABELLIST, CLASSLABEL, STRING);
/**
* Number vectors of <em>variable</em> length.
*/
public static final SimpleTypeInformation<? super NumberVector<?, ?>> NUMBER_VECTOR_VARIABLE_LENGTH = new SimpleTypeInformation<NumberVector<?, ?>>(NumberVector.class);
/**
* Input type for algorithms that require number vector fields.
*/
public static final VectorFieldTypeInformation<NumberVector<?, ?>> NUMBER_VECTOR_FIELD = new VectorFieldTypeInformation<NumberVector<?, ?>>(NumberVector.class);
/**
* Input type for algorithms that require number vector fields.
*
* If possible, please use {@link #NUMBER_VECTOR_FIELD}!
*/
public static final VectorFieldTypeInformation<DoubleVector> DOUBLE_VECTOR_FIELD = new VectorFieldTypeInformation<DoubleVector>(DoubleVector.class, DoubleVector.STATIC);
/**
* Input type for algorithms that require number vector fields.
*/
public static final VectorFieldTypeInformation<BitVector> BIT_VECTOR_FIELD = new VectorFieldTypeInformation<BitVector>(BitVector.class);
/**
* Sparse float vector field.
*/
public static final VectorFieldTypeInformation<SparseFloatVector> SPARSE_FLOAT_FIELD = new VectorFieldTypeInformation<SparseFloatVector>(SparseFloatVector.class);
/**
* External ID type
*/
public static final SimpleTypeInformation<ExternalID> EXTERNALID = new SimpleTypeInformation<ExternalID>(ExternalID.class);
/**
* Type for polygons
*/
public static final SimpleTypeInformation<PolygonsObject> POLYGON_TYPE = new SimpleTypeInformation<PolygonsObject>(PolygonsObject.class);
/**
* Double type, outlier scores etc.
*/
public static final SimpleTypeInformation<Double> DOUBLE = new SimpleTypeInformation<Double>(Double.class, ByteArrayUtil.DOUBLE_SERIALIZER);
/**
* Integer type.
*/
public static final SimpleTypeInformation<Integer> INTEGER = new SimpleTypeInformation<Integer>(Integer.class, ByteArrayUtil.INT_SERIALIZER);
/**
* Vector type.
*/
public static final SimpleTypeInformation<Vector> VECTOR = new SimpleTypeInformation<Vector>(Vector.class);
/**
* Matrix type.
*/
public static final SimpleTypeInformation<Matrix> MATRIX = new SimpleTypeInformation<Matrix>(Matrix.class);
/**
* Cluster model type.
*/
public static final SimpleTypeInformation<Model> MODEL = new SimpleTypeInformation<Model>(Model.class);
/**
* Make a type array easily.
*
* @param ts Types
* @return array
*/
public static final TypeInformation[] array(TypeInformation... ts) {
return ts;
}
}
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