http://xml.apache.org/commons/components/external/: xml-commons provides an Apache-hosted set of DOM, SAX, and JAXP interfaces for use in other xml-based projects. Our hope is that we can standardize on both a common version and packaging scheme for these critical XML standards interfaces to make the lives of both our developers and users easier. The External Components portion of xml-commons contains interfaces that are defined by external standards organizations. For DOM, that's the W3C; for SAX it's David Megginson and sax.sourceforge.net; for JAXP it's Sun. 

package org.w3c.dom.svg;

public interface SVGComponentTransferFunctionElement extends 
               SVGElement {
  // Component Transfer Types
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_UNKNOWN  = 0;
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_IDENTITY = 1;
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_TABLE    = 2;
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_DISCRETE    = 3;
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_LINEAR   = 4;
  public static final short SVG_FECOMPONENTTRANSFER_TYPE_GAMMA    = 5;

  public SVGAnimatedEnumeration getType( );
  public SVGAnimatedNumberList  getTableValues( );
  public SVGAnimatedNumber      getSlope( );
  public SVGAnimatedNumber      getIntercept( );
  public SVGAnimatedNumber      getAmplitude( );
  public SVGAnimatedNumber      getExponent( );
  public SVGAnimatedNumber      getOffset( );
}