/**
* creates and returns singleton instance of class
*
* @error 14802
* @param null|array|object $options expects optional class options
* @return Xapp_Rpc_Smd_Json
*/
public static function instance($options = null)
{
if (self::$_instance === null) {
self::$_instance = new self($options);
}
return self::$_instance;
}
/**
* class constructor will set missing instances of smd, request and response and
* call parent constructor for class initialization
*
* @error 14601
* @param null|array|object $options expects optional options
*/
public function __construct($options = null)
{
xapp_set_options($options, $this);
if (!xapp_is_option(self::SMD, $this)) {
xapp_set_option(self::SMD, Xapp_Rpc_Smd_Json::instance(), $this);
}
if (!xapp_is_option(self::REQUEST, $this)) {
xapp_set_option(self::REQUEST, new Xapp_Rpc_Request_Json(), $this);
}
if (!xapp_is_option(self::RESPONSE, $this)) {
xapp_set_option(self::RESPONSE, new Xapp_Rpc_Response_Json(), $this);
}
parent::__construct();
}