public function process()
    {
        parent::process();

        if ($this->value === null) {
            return;
        }

        $float_value = $this->getNumericValue($this->value);

        if ($float_value === null) {
            $this->addMessage($this->getValidationMessage('float'));
        } else {
            $this->value = $float_value;
        }
    }