/*
* 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.lineage;
import java.util.Collection;
import org.opengis.metadata.extent.Extent;
import org.opengis.metadata.identification.RepresentativeFraction;
import org.opengis.metadata.citation.Citation;
import org.opengis.referencing.ReferenceSystem;
import org.opengis.util.InternationalString;
import org.opengis.annotation.UML;
import static org.opengis.annotation.Obligation.*;
import static org.opengis.annotation.Specification.*;
/**
* Information about the source data used in creating the data specified by the scope.
*
*
* @source $URL: http://svn.osgeo.org/geotools/branches/2.7.x/modules/library/opengis/src/main/java/org/opengis/metadata/lineage/Source.java $
* @version <A HREF="http://www.opengeospatial.org/standards/as#01-111">ISO 19115</A>
* @author Martin Desruisseaux (IRD)
* @author Cory Horner (Refractions Research)
* @since GeoAPI 2.0
*/
@UML(identifier="LI_Source", specification=ISO_19115)
public interface Source {
/**
* Detailed description of the level of the source data.
*
* @return Description of the level of the source data, or {@code null}.
*/
@UML(identifier="description", obligation=CONDITIONAL, specification=ISO_19115)
InternationalString getDescription();
/**
* Denominator of the representative fraction on a source map.
*
* @return Representative fraction on a source map, or {@code null}.
*/
@UML(identifier="scaleDenominator", obligation=OPTIONAL, specification=ISO_19115)
RepresentativeFraction getScaleDenominator();
/**
* Spatial reference system used by the source data.
*
* @return Spatial reference system used by the source data, or {@code null}.
*/
@UML(identifier="sourceReferenceSystem", obligation=OPTIONAL, specification=ISO_19115)
ReferenceSystem getSourceReferenceSystem();
/**
* Recommended reference to be used for the source data.
*
* @return Recommended reference to be used for the source data, or {@code null}.
*/
@UML(identifier="sourceCitation", obligation=OPTIONAL, specification=ISO_19115)
Citation getSourceCitation();
/**
* Information about the spatial, vertical and temporal extent of the source data.
*
* @return Information about the extent of the source data.
*/
@UML(identifier="sourceExtent", obligation=CONDITIONAL, specification=ISO_19115)
Collection<? extends Extent> getSourceExtents();
/**
* Information about an event in the creation process for the source data.
*
* @return Information about an event in the creation process.
*/
@UML(identifier="sourceStep", obligation=OPTIONAL, specification=ISO_19115)
Collection<? extends ProcessStep> getSourceSteps();
}