/**
  * {@inheritdoc}
  */
 protected function _setDataValues(array $data)
 {
     if (array_key_exists(AttributeMetadata::OPTIONS, $data)) {
         $options = array();
         if (is_array($data[AttributeMetadata::OPTIONS])) {
             foreach ($data[AttributeMetadata::OPTIONS] as $key => $option) {
                 $options[$key] = $this->_optionBuilder->populateWithArray($option)->create();
             }
         }
         $validationRules = array();
         if (is_array($data[AttributeMetadata::VALIDATION_RULES])) {
             foreach ($data[AttributeMetadata::VALIDATION_RULES] as $key => $value) {
                 $validationRules[$key] = $this->_validationRuleBuilder->populateWithArray($value)->create();
             }
         }
         $data[AttributeMetadata::OPTIONS] = $options;
         $data[AttributeMetadata::VALIDATION_RULES] = $validationRules;
     }
     return parent::_setDataValues($data);
 }