http://xmlgraphics.apache.org/batik/batik-svggen/: Batik Java2D SVG generator (Apache Software Foundation) 
/*

   Licensed to the Apache Software Foundation (ASF) under one or more
   contributor license agreements.  See the NOTICE file distributed with
   this work for additional information regarding copyright ownership.
   The ASF licenses this file to You under the Apache License, Version 2.0
   (the "License"); you may not use this file except in compliance with
   the License.  You may obtain a copy of the License at

       http://www.apache.org/licenses/LICENSE-2.0

   Unless required by applicable law or agreed to in writing, software
   distributed under the License is distributed on an "AS IS" BASIS,
   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   See the License for the specific language governing permissions and
   limitations under the License.

 */
package org.apache.batik.svggen;

import java.util.List;
import java.util.Map;


Defines the interface for a set of SVG attributes and
related definitions.

Author:Vincent Hardy
See Also:
Version:$Id: SVGDescriptor.java 1733416 2016-03-03 07:07:13Z gadams $
/**
 * Defines the interface for a set of SVG attributes and
 * related definitions.
 *
 * @author <a href="mailto:vincent.hardy@eng.sun.com">Vincent Hardy</a>
 * @version $Id: SVGDescriptor.java 1733416 2016-03-03 07:07:13Z gadams $
 * @see           org.apache.batik.ext.awt.g2d.GraphicContext
 */
public interface SVGDescriptor{
    
Params:
  • attrMap – if not null, attribute name/value pairs
       for this descriptor should be written in this Map.
       Otherwise, a new Map will be created and attribute
       name/value pairs will be written into it.
Returns:a map containing the SVG attributes needed by the
        descriptor.
/**
     * @param attrMap if not null, attribute name/value pairs
     *        for this descriptor should be written in this Map.
     *        Otherwise, a new Map will be created and attribute
     *        name/value pairs will be written into it.
     * @return a map containing the SVG attributes needed by the
     *         descriptor.
     */
    Map getAttributeMap(Map attrMap);

    
Params:
  • defSet – if not null, definitions required to provide
       targets for the descriptor attribute values will be
       copied into defSet. If null, a new Set should be created
       and definitions copied into it. The set contains
       zero, one or more Elements.
Returns:a set containing Elements that represent the definition
        of the descriptor's attribute values
/**
     * @param defSet if not null, definitions required to provide
     *        targets for the descriptor attribute values will be
     *        copied into defSet. If null, a new Set should be created
     *        and definitions copied into it. The set contains
     *        zero, one or more Elements.
     * @return a set containing Elements that represent the definition
     *         of the descriptor's attribute values
     */
    List getDefinitionSet(List defSet);
}