source/Core/Base.php
public function getSession()
    {
        if (self::$_oSession == null) {
            self::$_oSession = \OxidEsales\Eshop\Core\Registry::getSession();
        }

        return self::$_oSession;
    }
public function getSession()
    {
        if (self::$_oSession == null) {
            self::$_oSession = \OxidEsales\Eshop\Core\Registry::getSession();
        }

        return self::$_oSession;
    }
public function getSession ( ) { if ( self :: $ _oSession == null ) { self :: $ _oSession = \ OxidEsales \ Eshop \ Core \ Registry :: getSession ( ) ; } return self :: $ _oSession ; }
oxSession instance getter

@return \OxidEsales\Eshop\Core\Session
oxSession instance getter