gets the icefaces id of this response . concode_field_sep long sequenceNumber concode_elem_sep String entityBody concode_elem_sep String viewNumber concode_elem_sep String iceFacesId concode_field_sep String getViewNumber concode_elem_sep long getSequenceNumber concode_elem_sep String getEntityBody concode_elem_sep boolean isEmpty concode_elem_sep int compareTo
String function ( ) { return iceFacesId ; }