public static boolean isNotNullValue(String s){
  return ((s != null) && !s.isEmpty() && !s.equals(NullColumnValueGetter.getNullStr()));
}

public static boolean isNotNullValue ( String s ) { return ( ( s != null ) && ! s . isEmpty ( ) && ! s . equals ( NullColumnValueGetter . getNullStr ( ) ) ) ; }
checks to see if a string value is null .
