/*
 *    GeoTools - The Open Source Java GIS Toolkit
 *    http://geotools.org
 *
 *    (C) 2011, Open Source Geospatial Foundation (OSGeo)
 *    (C) 2004-2005, Open Geospatial Consortium Inc.
 *    
 *    All Rights Reserved. http://www.opengis.org/legal/
 */
package org.opengis.metadata.quality;

import java.util.Collection;

import org.opengis.metadata.extent.Extent;
import org.opengis.metadata.maintenance.ScopeCode;
import org.opengis.metadata.maintenance.ScopeDescription;
import org.opengis.annotation.UML;

import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;


/**
 * Description of the data specified by the scope.
 *
 *
 * @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/opengis/src/main/java/org/opengis/metadata/quality/Scope.java $
 * @version <A HREF="http://www.opengeospatial.org/standards/as#01-111">ISO 19115</A>
 * @author  Martin Desruisseaux (IRD)
 * @since   GeoAPI 2.0
 */
@UML(identifier="DQ_Scope", specification=ISO_19115)
public interface Scope {
    /**
     * Hierarchical level of the data specified by the scope.
     *
     * @return Hierarchical level of the data.
     */
    @UML(identifier="level", obligation=MANDATORY, specification=ISO_19115)
    ScopeCode getLevel();

    /**
     * Detailed description about the level of the data specified by the scope.
     * Should be defined only if the {@linkplain #getLevel level} is not equal
     * to {@link ScopeCode#DATASET DATASET} or {@link ScopeCode#SERIES SERIES}.
     *
     * @return Detailed description about the level of the data.
     *
     * @since GeoAPI 2.1
     */
    @UML(identifier="levelDescription", obligation=CONDITIONAL, specification=ISO_19115)
    Collection<? extends ScopeDescription> getLevelDescription();

    /**
     * Information about the spatial, vertical and temporal extent of the data specified by the
     * scope.
     *
     * @return Information about the extent of the data, or {@code null}.
     */
    @UML(identifier="extent", obligation=OPTIONAL, specification=ISO_19115)
    Extent getExtent();
}