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.DOMException;


 The CSSStyleRule interface represents a single rule set in a 
CSS style sheet. 

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

Since:DOM Level 2
/**
 *  The <code>CSSStyleRule</code> interface represents a single rule set in a 
 * CSS style sheet. 
 * <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 CSSStyleRule extends CSSRule {
    
 The textual representation of the selector for the rule set. The 
implementation may have stripped out insignificant whitespace while 
parsing the selector. 

/**
     *  The textual representation of the selector for the rule set. The 
     * implementation may have stripped out insignificant whitespace while 
     * parsing the selector. 
     */
    public String getSelectorText();
    
 The textual representation of the selector for the rule set. The 
implementation may have stripped out insignificant whitespace while 
parsing the selector. 

Throws:
  • DOMException – 
  SYNTAX_ERR: Raised if the specified CSS string value has a syntax 
  error and is unparsable.
  
    NO_MODIFICATION_ALLOWED_ERR: Raised if this rule is readonly.
/**
     *  The textual representation of the selector for the rule set. The 
     * implementation may have stripped out insignificant whitespace while 
     * parsing the selector. 
     * @exception DOMException
     *   SYNTAX_ERR: Raised if the specified CSS string value has a syntax 
     *   error and is unparsable.
     *   <br>NO_MODIFICATION_ALLOWED_ERR: Raised if this rule is readonly.
     */
    public void setSelectorText(String selectorText)
                        throws DOMException;

    
 The declaration-block of this rule set. 

/**
     *  The declaration-block of this rule set. 
     */
    public CSSStyleDeclaration getStyle();

}