xyzshop/helper/refill/CoRefillFactory.php

<?php


namespace refill;

require_once(BASE_HELPER_PATH . '/refill/RefillBase.php');

class CoRefillFactory extends RefillBase
{
    private static $stInstance = null;

    public static function instance()
    {
        if (self::$stInstance == null) {
            self::$stInstance = new CoRefillFactory();
        }

        return self::$stInstance;
    }

    private function __construct()
    {
        $this->load();
    }
}