/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, Open Source Geospatial Foundation (OSGeo)
* (C) 2003-2005, Open Geospatial Consortium Inc.
*
* All Rights Reserved. http://www.opengis.org/legal/
*/
package org.opengis.geometry;
import org.opengis.geometry.complex.Complex;
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;
/**
* 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} to
* represent its boundary through the operation {@link Geometry#getBoundary}. By the nature of
* geometry, boundary objects are cycles.
*
*
* @source $URL: http://svn.osgeo.org/geotools/branches/2.7.x/modules/library/opengis/src/main/java/org/opengis/geometry/Boundary.java $
* @version <A HREF="http://www.opengeospatial.org/standards/as">ISO 19107</A>
* @author Martin Desruisseaux (IRD)
* @since GeoAPI 1.0
*/
@UML(identifier="GM_Boundary", specification=ISO_19107)
public interface Boundary extends Complex {
/**
* Always returns {@code true} since boundary objects are cycles.
*
* @return Always {@code true}.
*/
@UML(identifier="isCycle", obligation=MANDATORY, specification=ISO_19107)
boolean isCycle();
}