/**
* Constructor.
*
* @param AppInfo $appInfo
* See {@link getAppInfo()}
* @param string $clientIdentifier
* See {@link getClientIdentifier()}
* @param null|string $userLocale
* See {@link getUserLocale()}
*/
function __construct($appInfo, $clientIdentifier, $userLocale = null)
{
AppInfo::checkArg("appInfo", $appInfo);
Checker::argStringNonEmpty("clientIdentifier", $clientIdentifier);
Checker::argStringNonEmptyOrNull("userLocale", $userLocale);
$this->appInfo = $appInfo;
$this->clientIdentifier = $clientIdentifier;
$this->userLocale = $userLocale;
}