Expanded class hierarchy of QueryBase in Drupal 8
- class \Drupal\Core\Entity\Query\QueryBase implements QueryInterface
- class \Drupal\apigee_edge\Entity\Query\Query implements QueryInterface
- class \Drupal\civicrm_entity\Entity\Query\CiviCRM\Query implements QueryInterface
- class \Drupal\Core\Config\Entity\Query\Query implements QueryInterface
- class \Drupal\Core\Entity\KeyValueStore\Query\Query
- class \Drupal\Core\Entity\Query\Null\Query implements QueryAggregateInterface, QueryInterface
- class \Drupal\Core\Entity\Query\Sql\Query implements QueryInterface
- class \Drupal\mongodb\Entity\Query implements QueryInterface