* the xhtml:xxx attrbutes values of the node are changed.
* @param the node, whose in content metadata will be updated
*/
public void updateInContentMetadataCache(Node node) {
this.getInContentMetadataCache().remove(node);
DOMRDFaParser parser = DOMRDFaParser.createInstance(this.sink);
String baseUri = Util.getRDFBaseUri(mPackage.getBaseURI(), mPackagePath);
parser.setBase(baseUri);
parser.parse(node);
}