/*$************************************************************************************************
 **
 ** $Id: SymbolVisitor.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/sld/SymbolVisitor.java $
 **
 ** Copyright (C) 2005 Open GIS Consortium, Inc.
 ** All Rights Reserved. http://www.opengis.org/legal/
 **
 *************************************************************************************************/
package org.opengis.sld;

// Annotations
import org.opengis.annotation.Extension;


/**
 * Visitor with {@code visit} methods to be called by {@link Symbol#accept Symbol.accept(...)}.
 *
 * @version Implementation specification 1.0
 * @author Chris Dillard (SYS Technologies)
 * @since GeoAPI 2.0
 */
@Extension
public interface SymbolVisitor {
    Object visit(LineSymbol    symbol, Object userData);
    Object visit(PointSymbol   symbol, Object userData);
    Object visit(PolygonSymbol symbol, Object userData);
    Object visit(TextSymbol    symbol, Object userData);
}