All classes that implement SearchIndexingInterface in Drupal 9
- class \Drupal\help_topics\Plugin\Search\HelpSearch implements AccessibleInterface, SearchIndexingInterface
- class \Drupal\node\Plugin\Search\NodeSearch implements AccessibleInterface, TrustedCallbackInterface, SearchIndexingInterface
- class \Drupal\photos\Plugin\Search\PhotosImageSearch implements AccessibleInterface, TrustedCallbackInterface, SearchIndexingInterface uses DeprecatedServicePropertyTrait
- class \Drupal\search_exclude\Plugin\Search\SearchExcludeNodeSearch
- class \Drupal\search_exclude\Plugin\Search\SearchExcludeNodeSearch