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. 
/*
 * Copyright (c) 1998 World Wide Web Consortium, (Massachusetts Institute of
 * Technology, Institut National de Recherche en Informatique et en
 * Automatique, Keio University).
 * All Rights Reserved. http://www.w3.org/Consortium/Legal/
 */

package org.w3c.dom.html;

import org.w3c.dom.*;


This contains generic meta-information about the document. See the META 
element definition in HTML 4.0.

/**
 * This contains generic meta-information about the document. See the META 
 * element definition in HTML 4.0.
 */
public interface HTMLMetaElement extends HTMLElement {
  
Associated information. See the content attribute definition in HTML 4.0.

/**
   * Associated information. See the content attribute definition in HTML 4.0.
   */
  public String             getContent();
  public void               setContent(String content);
  
HTTP response header name. See the http-equiv attribute definition in 
HTML 4.0.

/**
   * HTTP response header name. See the http-equiv attribute definition in 
   * HTML 4.0.
   */
  public String             getHttpEquiv();
  public void               setHttpEquiv(String httpEquiv);
  
Meta information name. See the name attribute definition in HTML 4.0.

/**
   * Meta information name. See the name attribute definition in HTML 4.0.
   */
  public String             getName();
  public void               setName(String name);
  
Select form of content. See the scheme attribute definition in HTML 4.0.

/**
   * Select form of content. See the scheme attribute definition in HTML 4.0.
   */
  public String             getScheme();
  public void               setScheme(String scheme);
}