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) 2000 World Wide Web Consortium,
 * (Massachusetts Institute of Technology, Institut National de
 * Recherche en Informatique et en Automatique, Keio University). All
 * Rights Reserved. This program is distributed under the W3C's Software
 * Intellectual Property License. This program is distributed in the
 * hope that it will be useful, but WITHOUT ANY WARRANTY; without even
 * the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
 * PURPOSE.
 * See W3C License http://www.w3.org/Consortium/Legal/ for more details.
 */

package org.w3c.dom.css;

import org.w3c.dom.Element;
import org.w3c.dom.views.AbstractView;


 This interface represents a CSS view. The getComputedStyle 
method provides a read only access to the computed values of an element. 

 The expectation is that an instance of the ViewCSS 
interface can be obtained by using binding-specific casting methods on an 
instance of the AbstractView interface. 

 Since a computed style is related to an Element node, if 
this element is removed from the document, the associated 
CSSStyleDeclaration and CSSValue related to 
this declaration are no longer valid. 

See also the Document Object Model (DOM) Level 2 Style Specification.

Since:DOM Level 2
/**
 *  This interface represents a CSS view. The <code>getComputedStyle</code> 
 * method provides a read only access to the computed values of an element. 
 * <p> The expectation is that an instance of the <code>ViewCSS</code> 
 * interface can be obtained by using binding-specific casting methods on an 
 * instance of the <code>AbstractView</code> interface. 
 * <p> Since a computed style is related to an <code>Element</code> node, if 
 * this element is removed from the document, the associated 
 * <code>CSSStyleDeclaration</code> and <code>CSSValue</code> related to 
 * this declaration are no longer valid. 
 * <p>See also the <a href='http://www.w3.org/TR/2000/REC-DOM-Level-2-Style-20001113'>Document Object Model (DOM) Level 2 Style Specification</a>.
 * @since DOM Level 2
 */
public interface ViewCSS extends AbstractView {
    
 This method is used to get the computed style as it is defined in [CSS2]. 

Params:
  • elt –  The element whose style is to be computed. This parameter 
  cannot be null.
  • pseudoElt –  The pseudo-element or null if none.
Returns: The computed style. The CSSStyleDeclaration is 
  read-only and contains only absolute values.
/**
     *  This method is used to get the computed style as it is defined in [<a href='http://www.w3.org/TR/1998/REC-CSS2-19980512'>CSS2</a>]. 
     * @param elt  The element whose style is to be computed. This parameter 
     *   cannot be null. 
     * @param pseudoElt  The pseudo-element or <code>null</code> if none. 
     * @return  The computed style. The <code>CSSStyleDeclaration</code> is 
     *   read-only and contains only absolute values. 
     */
    public CSSStyleDeclaration getComputedStyle(Element elt, 
                                                String pseudoElt);

}