writes a soap 1.1 ref attribute . concode_field_sep QName SOAP_ENCODING_REF_1_2 concode_elem_sep QName SOAP_ENCODING_ID_1_1 concode_elem_sep QName SOAP_ENCODING_ID_1_2 concode_elem_sep QName SOAP_ENCODING_REF_1_1 concode_elem_sep String SOAP_ENCODING_NS_1_2 concode_field_sep void writeId concode_elem_sep String readId concode_elem_sep String readAttributeValue concode_elem_sep String readRef concode_elem_sep void writeAttribute