/*$************************************************************************************************ ** ** $Id: Boundary.java,v 1.5 2004/03/09 20:02:54 desruisseaux Exp $ ** ** $Source: /cvsroot/geoapi/src/org/opengis/spatialschema/geometry/Boundary.java,v $ ** ** Copyright (C) 2003 Open GIS Consortium, Inc. All Rights Reserved. http://www.opengis.org/Legal/ ** *************************************************************************************************/package org.opengis.spatialschema.geometry;// OpenGIS direct dependenciesimport org.opengis.spatialschema.geometry.complex.Complex;/** * The abstract root data type for all the data types used to represent the boundary of geometric * objects. Any subclass of {@link Geometry} will use a subclass of <code>Boundary</code> to * represent its boundary through the operation {@link Geometry#getBoundary}. By the nature of * geometry, boundary objects are cycles. * * @UML type GM_Boundary * @author ISO/DIS 19107 * @author <A HREF="http://www.opengis.org">OpenGIS&reg; consortium</A> * @version 2.0 */public interface Boundary extends Complex {    /**     * Always returns <code>true</code> since boundary objects are cycles.     *     * @return Always <code>true</code>.     */    public boolean isCycle();}