code: void setDefAttrValue(StylesheetHandler handler, ElemTemplateElement elem)
            throws org.xml.sax.SAXException
    {
      setAttrValue(handler, this.getNamespace(), this.getName(),
                   this.getName(), this.getDefault(), elem);
    }
docs: Set the default value of an attribute.
  
  @param handler non-null reference to current StylesheetHandler that is constructing the Templates.
  @param elem The object on which the property will be set.
  
  @throws org.xml.sax.SAXException wraps an invocation exception if the
  setter method can not be invoked on the object.