FormValidatorISSN.inc.php

<?php
 
import('lib.pkp.classes.form.validation.FormValidator');
 
class FormValidatorISSN extends FormValidator {
   function __construct($form, $field, $type, $message) {
      import('lib.pkp.classes.validation.ValidatorISSN');
      $validator = new ValidatorISSN();
      parent::__construct($form, $field, $type, $message, $validator);
   }
}