001    /*
002     * Licensed to the Apache Software Foundation (ASF) under one or more
003     * contributor license agreements.  See the NOTICE file distributed with
004     * this work for additional information regarding copyright ownership.
005     * The ASF licenses this file to You under the Apache License, Version 2.0
006     * (the "License"); you may not use this file except in compliance with
007     * the License.  You may obtain a copy of the License at
008     *
009     *      http://www.apache.org/licenses/LICENSE-2.0
010     *
011     * Unless required by applicable law or agreed to in writing, software
012     * distributed under the License is distributed on an "AS IS" BASIS,
013     * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014     * See the License for the specific language governing permissions and
015     * limitations under the License.
016     */
017    package org.apache.commons.math3.geometry;
018    
019    import java.io.Serializable;
020    
021    import org.apache.commons.math3.exception.MathUnsupportedOperationException;
022    
023    /** This interface represents a generic space, with affine and vectorial counterparts.
024     * @version $Id: Space.java 1416643 2012-12-03 19:37:14Z tn $
025     * @see Vector
026     * @since 3.0
027     */
028    public interface Space extends Serializable {
029    
030        /** Get the dimension of the space.
031         * @return dimension of the space
032         */
033        int getDimension();
034    
035        /** Get the n-1 dimension subspace of this space.
036         * @return n-1 dimension sub-space of this space
037         * @see #getDimension()
038         * @exception MathUnsupportedOperationException for dimension-1 spaces
039         * which do not have sub-spaces
040         */
041        Space getSubSpace() throws MathUnsupportedOperationException;
042    
043    }