private boolean isNullSetting(boolean makeDest,MappingType mtd,MappingType mts,StringBuilder result){
  if (makeDest && (mtd == ALL_FIELDS || mtd == ONLY_VALUED_FIELDS) && mts == ONLY_NULL_FIELDS) {
    result.append("   " + stringOfSetDestination + "(null);"+ newLine);
    return true;
  }
  return false;
}

private boolean isNullSetting ( boolean makeDest , MappingType mtd , MappingType mts , StringBuilder result ) { if ( makeDest && ( mtd == ALL_FIELDS || mtd == ONLY_VALUED_FIELDS ) && mts == ONLY_NULL_FIELDS ) { result . append ( "   " + stringOfSetDestination + "(null);" + newLine ) ; return true ; } return false ; }
if it is a null setting returns the null mapping
