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;

import org.w3c.dom.DOMException;

public interface SVGPreserveAspectRatio {
  // Alignment Types
  public static final short SVG_PRESERVEASPECTRATIO_UNKNOWN   = 0;
  public static final short SVG_PRESERVEASPECTRATIO_NONE     = 1;
  public static final short SVG_PRESERVEASPECTRATIO_XMINYMIN = 2;
  public static final short SVG_PRESERVEASPECTRATIO_XMIDYMIN = 3;
  public static final short SVG_PRESERVEASPECTRATIO_XMAXYMIN = 4;
  public static final short SVG_PRESERVEASPECTRATIO_XMINYMID = 5;
  public static final short SVG_PRESERVEASPECTRATIO_XMIDYMID = 6;
  public static final short SVG_PRESERVEASPECTRATIO_XMAXYMID = 7;
  public static final short SVG_PRESERVEASPECTRATIO_XMINYMAX = 8;
  public static final short SVG_PRESERVEASPECTRATIO_XMIDYMAX = 9;
  public static final short SVG_PRESERVEASPECTRATIO_XMAXYMAX = 10;
  // Meet-or-slice Types
  public static final short SVG_MEETORSLICE_UNKNOWN   = 0;
  public static final short SVG_MEETORSLICE_MEET  = 1;
  public static final short SVG_MEETORSLICE_SLICE = 2;

  public short getAlign( );
  public void      setAlign( short align )
                       throws DOMException;
  public short getMeetOrSlice( );
  public void      setMeetOrSlice( short meetOrSlice )
                       throws DOMException;
}