public function getOperators()
    {
        return array(
            "<" => $this->translation->text('Less than'),
            ">" => $this->translation->text('Greater than'),
            "=" => $this->translation->text('Equal (is in list)'),
            "<=" => $this->translation->text('Less than or equal to'),
            ">=" => $this->translation->text('Greater than or equal to'),
            "!=" => $this->translation->text('Not equal (is not in list)')
        );
    }