125      * @param   int    $lower       Lower bound value.
131         $lower          = null,  argument
135         if (null === $lower) {
136             $lower = $this->_parameters->getParameter('integer.min');
144             if ($lower > $upper) {
148                     [$lower, $upper]
152             return $this->_getInteger($lower, $upper);
160         if ($lower > $upper) {
164                 [$lower, $upper]
168         $sampled = $this->_getInteger($lower, $upper);
184      * @param   int  $lower    Lower bound value.
188     abstract protected function _getInteger($lower, $upper);  argument
193      * @param   float   $lower    Lower bound value.
197     public function getFloat($lower = null, $upper = null)  argument
199         if (null === $lower) {
200             $lower = $this->_parameters->getParameter('float.min');
217         if ($lower > $upper) {
220                 2, [$lower, $upper]);
223         return $this->_getFloat($lower, $upper);
229      * @param   float      $lower    Lower bound value.
233     abstract protected function _getFloat($lower, $upper);  argument