/*
* GeoTools - The Open Source Java GIS Toolkit
* http://geotools.org
*
* (C) 2011, Open Source Geospatial Foundation (OSGeo)
* (C) 2005 Open Geospatial Consortium Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*/
package org.opengis.filter.capability;
import java.util.Collection;
/**
* Supported spatial operators in a filter capabilities document.
* <p>
* <pre>
* <xsd:complexType name="Spatial_OperatorsType">
* <xsd:choice maxOccurs="unbounded">
* <xsd:element ref="ogc:BBOX"/>
* <xsd:element ref="ogc:Equals"/>
* <xsd:element ref="ogc:Disjoint"/>
* <xsd:element ref="ogc:Intersect"/>
* <xsd:element ref="ogc:Touches"/>
* <xsd:element ref="ogc:Crosses"/>
* <xsd:element ref="ogc:Within"/>
* <xsd:element ref="ogc:Contains"/>
* <xsd:element ref="ogc:Overlaps"/>
* <xsd:element ref="ogc:Beyond"/>
* <xsd:element ref="ogc:DWithin"/>
* </xsd:choice>
* </xsd:complexType>
* </pre>
* </p>
* @author Justin Deoliveira, The Open Planning Project
*
*
* @source $URL: http://svn.osgeo.org/geotools/trunk/modules/library/opengis/src/main/java/org/opengis/filter/capability/SpatialOperators.java $
*/
public interface SpatialOperators {
/**
* Provided spatial operators.
*/
Collection<SpatialOperator> getOperators();
/**
* Looks up an operator by name, returning null if no such operator found.
*
* @param name the name of the operator.
*
* @return The operator, or null.
*/
SpatialOperator getOperator( String name );
}