code: protected function setOptions(array $options) {
          if (!array_key_exists('adapter', $options) || !array_key_exists('table', $options) || !array_key_exists('column_key', $options) || !array_key_exists('column_value', $options)) {
              throw new Exception\InvalidArgumentException('Db adapter options must be defined "adapter", "table", "column_key" and "column_value" keys.');
          }
          if (!$options['adapter'] instanceof Adapter) {
              throw new Exception\InvalidArgumentException('Db adapter must be an instance of Zend\Db\Adapter\Adapter.');
          }
          $this->adapter = $options['adapter'];
          $options['table'] = $this->adapter->getPlatform()->quoteIdentifier($options['table']);
          $options['column_key'] = $this->adapter->getPlatform()->quoteIdentifier($options['column_key']);
          $options['column_value'] = $this->adapter->getPlatform()->quoteIdentifier($options['column_value']);
          $this->options = $options;
  
          return $this;
      }
docs: Set the db adapter options
  @param array $options