private static boolean isBadLength(ColumnDef columnDef, int length) {
   return columnDef.getLength() < length && !columnDef.getType().equals(ColumnType.BLOB);
 }
 public static boolean isValid(ColumnDef def, Object value) {
   return validators.containsKey(def.getType())
       && validators.get(def.getType()).isValid(def, value);
 }