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Standard interfaces implemented throughout the library.
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/*
 *    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.aggregate;

import java.util.Set;
import org.opengis.geometry.primitive.OrientableCurve;
import org.opengis.geometry.primitive.OrientableSurface;
import org.opengis.geometry.primitive.Point;
import org.opengis.geometry.primitive.Primitive;

/**
 * A factory of {@linkplain Aggregate aggregate} geometric objects. All aggregates created through
 * this interface will use the {@linkplain #getCoordinateReferenceSystem factory's coordinate
 * reference system}. Creating aggregates in a different CRS may requires a different instance of
 * {@code AggregateFactory}.
 *
 * @version ISO 19107
 * @author Sanjay Jena
 * @author Prof. Dr. Jackson Roehrig
 * @since GeoAPI 2.1
 * @todo Need to check if ISO 19107 defines constructors for aggregates.
 */
public interface AggregateFactory {
    /**
     * Creates a {@linkplain MultiPrimitive multi primitive} by a set of {@linkplain Primitive
     * primitives}. The created {@code MultiPrimitive} will hold only references to the given
     * primitive, e.g. changes in the primitive instances will have consequences in the geometric
     * behaviour of the {@code MultiPrimitive} and vice versa.
     *
     * @param primitives A set of primitives.
     * @return the resulting multi primitive.
     */
    MultiPrimitive createMultiPrimitive(Set primitives);

    /**
     * Creates a {@linkplain MultiPoint multi point} by a set of {@linkplain Point points}. The
     * created {@code MultiPoint} will hold only references to the given points, e.g. changes in the
     * point instances will have consequences in the geometric behaviour of the {@code MultiPoint}
     * and vice versa.
     *
     * @param points A set of points.
     * @return the resulting multi point.
     */
    MultiPoint createMultiPoint(Set points);

    /**
     * Creates a {@linkplain MultiCurve multi curve} by a set of {@linkplain Curve curves}. The
     * created {@code MultiCurve} will hold only references to the given curves, e.g. changes in the
     * curve instances will have consequences in the geometric behaviour of the {@code MultiCurve}
     * and vice versa.
     *
     * @param curves A set of curves.
     * @return the resulting multi curve.
     */
    MultiCurve createMultiCurve(Set curves);

    /**
     * Creates a {@linkplain MultiSurface multi surface} by a set of {@linkplain Surface surfaces}.
     * The created {@code MultiSurface} will hold only references to the given surfaces, e.g.
     * changes in the surface instances will have consequences in the geometric behaviour of the
     * {@code MultiSurface} and vice versa.
     *
     * @param surfaces A set of surfaces.
     * @return the resulting multi surface.
     */
    MultiSurface createMultiSurface(Set surfaces);
}