/*$************************************************************************************************
 **
 ** $Id: Aggregate.java 831 2006-05-01 00:27:23Z Desruisseaux $
 **
 ** $URL: http://svn.code.sf.net/p/geoapi/code/branches/2.0.x/geoapi/src/main/java/org/opengis/spatialschema/geometry/aggregate/Aggregate.java $
 **
 ** Copyright (C) 2003-2005 Open GIS Consortium, Inc.
 ** All Rights Reserved. http://www.opengis.org/legal/
 **
 *************************************************************************************************/
package org.opengis.spatialschema.geometry.aggregate;

// J2SE direct dependencies
import java.util.Set;

// OpenGIS direct dependencies
import org.opengis.spatialschema.geometry.Geometry;

// Annotations
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * Geometry that is an aggregate of other geometries.
 *
 * @version Abstract specification 5
 * @since GeoAPI 1.0
 */
@UML(identifier="GM_Aggregate", specification=ISO_19107)
public interface Aggregate extends Geometry {
    /**
     * Returns the {@linkplain Set} containing the elements that compose this
     * aggregate.  The {@linkplain Set} may be modified if this geometry is
     * {@linkplain #isMutable mutable}.
     */
    @UML(identifier="element", obligation=MANDATORY, specification=ISO_19107)
    public Set getElements();
}