public function setEphemeral($name, $value)
    {
        $ephemeral                        = $this->get(self::EPHEMERAL);
        $ephemeral[$name][self::ACTIVE]   = true;
        $ephemeral[$name][self::VARIABLE] = $value;
        $this->set(self::EPHEMERAL, $ephemeral);

        return $this;
    }