for( int i=0; i<dts.length; i++ ) {
// TODO: serious implementation
out.start( "dataSymbol", new String[]{
"id",(String)allNames.get(dts[i])});
out.element("library", dts[i].getName().namespaceURI );
out.element("name", dts[i].getName().localName );
out.end("dataSymbol");
// "type", ((XSDatatype)dts[i].dt).getConcreteType().getName()