class EntityFieldManager implements EntityFieldManagerInterface {
  use UseCacheBackendTrait;
  use StringTranslationTrait;

  /**
   * Extra fields by bundle.
   *
   * @var array
   */
  protected $extraFields = [];

  /**
   * Static cache of base field definitions.
   *
   * @var array
   */
  protected $baseFieldDefinitions;

  /**
   * Static cache of field definitions per bundle and entity type.
   *
   * @var array
   */
  protected $fieldDefinitions;

  /**
   * Static cache of field storage definitions per entity type.
   *
   * Elements of the array:
   *  - $entity_type_id: \Drupal\Core\Field\BaseFieldDefinition[]
   *
   * @var array
   */
  protected $fieldStorageDefinitions;

  /**
   * An array keyed by entity type. Each value is an array whose keys are
   * field names and whose value is an array with two entries:
   *   - type: The field type.
   *   - bundles: The bundles in which the field appears.
   *
   * @return array
   */
  protected $fieldMap = [];

  /**
   * An array keyed by field type. Each value is an array whose key are entity
   * types including arrays in the same form that $fieldMap.
   *
   * It helps access the mapping between types and fields by the field type.
   *
   * @var array
   */
  protected $fieldMapByFieldType = [];

  /**
   * The typed data manager.
   *
   * @var \Drupal\Core\TypedData\TypedDataManagerInterface
   */
  protected $typedDataManager;

  /**
   * The language manager.
   *
   * @var \Drupal\Core\Language\LanguageManagerInterface
   */
  protected $languageManager;

  /**
   * The key-value factory.
   *
   * @var \Drupal\Core\KeyValueStore\KeyValueFactoryInterface
   */
  protected $keyValueFactory;

  /**
   * The module handler.
   *
   * @var \Drupal\Core\Extension\ModuleHandlerInterface
   */
  protected $moduleHandler;

  /**
   * The entity type manager.
   *
   * @var \Drupal\Core\Entity\EntityTypeManagerInterface
   */
  protected $entityTypeManager;

  /**
   * The entity type bundle info.
   *
   * @var \Drupal\Core\Entity\EntityTypeBundleInfoInterface
   */
  protected $entityTypeBundleInfo;

  /**
   * The entity display repository.
   *
   * @var \Drupal\Core\Entity\EntityDisplayRepositoryInterface
   */
  protected $entityDisplayRepository;

  /**
   * Constructs a new EntityFieldManager.
   *
   * @param \Drupal\Core\Entity\EntityTypeManagerInterface $entity_type_manager
   *   The entity type manager.
   * @param \Drupal\Core\Entity\EntityTypeBundleInfoInterface $entity_type_bundle_info
   *   The entity type bundle info.
   * @param \Drupal\Core\Entity\EntityDisplayRepositoryInterface $entity_display_repository
   *   The entity display repository.
   * @param \Drupal\Core\TypedData\TypedDataManagerInterface $typed_data_manager
   *   The typed data manager.
   * @param \Drupal\Core\Language\LanguageManagerInterface $language_manager
   *   The language manager.
   * @param \Drupal\Core\KeyValueStore\KeyValueFactoryInterface $key_value_factory
   *   The key-value factory.
   * @param \Drupal\Core\Extension\ModuleHandlerInterface $module_handler
   *   The module handler.
   * @param \Drupal\Core\Cache\CacheBackendInterface $cache_backend
   *   The cache backend.
   */
  public function __construct(EntityTypeManagerInterface $entity_type_manager, EntityTypeBundleInfoInterface $entity_type_bundle_info, EntityDisplayRepositoryInterface $entity_display_repository, TypedDataManagerInterface $typed_data_manager, LanguageManagerInterface $language_manager, KeyValueFactoryInterface $key_value_factory, ModuleHandlerInterface $module_handler, CacheBackendInterface $cache_backend) {
    $this->entityTypeManager = $entity_type_manager;
    $this->entityTypeBundleInfo = $entity_type_bundle_info;
    $this->entityDisplayRepository = $entity_display_repository;
    $this->typedDataManager = $typed_data_manager;
    $this->languageManager = $language_manager;
    $this->keyValueFactory = $key_value_factory;
    $this->moduleHandler = $module_handler;
    $this->cacheBackend = $cache_backend;
  }

  /**
   * {@inheritdoc}
   */
  public function getBaseFieldDefinitions($entity_type_id) {

    // Check the static cache.
    if (!isset($this->baseFieldDefinitions[$entity_type_id])) {

      // Not prepared, try to load from cache.
      $cid = 'entity_base_field_definitions:' . $entity_type_id . ':' . $this->languageManager
        ->getCurrentLanguage()
        ->getId();
      if ($cache = $this
        ->cacheGet($cid)) {
        $this->baseFieldDefinitions[$entity_type_id] = $cache->data;
      }
      else {

        // Rebuild the definitions and put it into the cache.
        $this->baseFieldDefinitions[$entity_type_id] = $this
          ->buildBaseFieldDefinitions($entity_type_id);
        $this
          ->cacheSet($cid, $this->baseFieldDefinitions[$entity_type_id], Cache::PERMANENT, [
          'entity_types',
          'entity_field_info',
        ]);
      }
    }
    return $this->baseFieldDefinitions[$entity_type_id];
  }

  /**
   * Builds base field definitions for an entity type.
   *
   * @param string $entity_type_id
   *   The entity type ID. Only entity types that implement
   *   \Drupal\Core\Entity\FieldableEntityInterface are supported.
   *
   * @return \Drupal\Core\Field\FieldDefinitionInterface[]
   *   An array of field definitions, keyed by field name.
   *
   * @throws \LogicException
   *   Thrown if a config entity type is given or if one of the entity keys is
   *   flagged as translatable.
   */
  protected function buildBaseFieldDefinitions($entity_type_id) {
    $entity_type = $this->entityTypeManager
      ->getDefinition($entity_type_id);
    $class = $entity_type
      ->getClass();
    $keys = array_filter($entity_type
      ->getKeys());

    // Fail with an exception for non-fieldable entity types.
    if (!$entity_type
      ->isSubclassOf(FieldableEntityInterface::class)) {
      throw new \LogicException("Getting the base fields is not supported for entity type {$entity_type->getLabel()}.");
    }

    // Retrieve base field definitions.

    /** @var \Drupal\Core\Field\FieldStorageDefinitionInterface[] $base_field_definitions */
    $base_field_definitions = $class::baseFieldDefinitions($entity_type);

    // Make sure translatable entity types are correctly defined.
    if ($entity_type
      ->isTranslatable()) {

      // The langcode field should always be translatable if the entity type is.
      if (isset($keys['langcode']) && isset($base_field_definitions[$keys['langcode']])) {
        $base_field_definitions[$keys['langcode']]
          ->setTranslatable(TRUE);
      }

      // A default_langcode field should always be defined.
      if (!isset($base_field_definitions[$keys['default_langcode']])) {
        $base_field_definitions[$keys['default_langcode']] = BaseFieldDefinition::create('boolean')
          ->setLabel($this
          ->t('Default translation'))
          ->setDescription($this
          ->t('A flag indicating whether this is the default translation.'))
          ->setTranslatable(TRUE)
          ->setRevisionable(TRUE)
          ->setDefaultValue(TRUE);
      }
    }

    // Assign base field definitions the entity type provider.
    $provider = $entity_type
      ->getProvider();
    foreach ($base_field_definitions as $definition) {

      // @todo Remove this check once FieldDefinitionInterface exposes a proper
      //  provider setter. See https://www.drupal.org/node/2225961.
      if ($definition instanceof BaseFieldDefinition) {
        $definition
          ->setProvider($provider);
      }
    }

    // Retrieve base field definitions from modules.
    foreach ($this->moduleHandler
      ->getImplementations('entity_base_field_info') as $module) {
      $module_definitions = $this->moduleHandler
        ->invoke($module, 'entity_base_field_info', [
        $entity_type,
      ]);
      if (!empty($module_definitions)) {

        // Ensure the provider key actually matches the name of the provider
        // defining the field.
        foreach ($module_definitions as $field_name => $definition) {

          // @todo Remove this check once FieldDefinitionInterface exposes a
          //  proper provider setter. See https://www.drupal.org/node/2225961.
          if ($definition instanceof BaseFieldDefinition && $definition
            ->getProvider() == NULL) {
            $definition
              ->setProvider($module);
          }
          $base_field_definitions[$field_name] = $definition;
        }
      }
    }

    // Automatically set the field name, target entity type and bundle
    // for non-configurable fields.
    foreach ($base_field_definitions as $field_name => $base_field_definition) {
      if ($base_field_definition instanceof BaseFieldDefinition) {
        $base_field_definition
          ->setName($field_name);
        $base_field_definition
          ->setTargetEntityTypeId($entity_type_id);
        $base_field_definition
          ->setTargetBundle(NULL);
      }
    }

    // Invoke alter hook.
    $this->moduleHandler
      ->alter('entity_base_field_info', $base_field_definitions, $entity_type);

    // Ensure defined entity keys are there and have proper revisionable and
    // translatable values.
    foreach (array_intersect_key($keys, array_flip([
      'id',
      'revision',
      'uuid',
      'bundle',
    ])) as $key => $field_name) {
      if (!isset($base_field_definitions[$field_name])) {
        throw new \LogicException("The {$field_name} field definition does not exist and it is used as {$key} entity key.");
      }
      if ($base_field_definitions[$field_name]
        ->isRevisionable()) {
        throw new \LogicException("The {$base_field_definitions[$field_name]->getLabel()} field cannot be revisionable as it is used as {$key} entity key.");
      }
      if ($base_field_definitions[$field_name]
        ->isTranslatable()) {
        throw new \LogicException("The {$base_field_definitions[$field_name]->getLabel()} field cannot be translatable as it is used as {$key} entity key.");
      }
    }

    // Make sure translatable entity types define the "langcode" field properly.
    if ($entity_type
      ->isTranslatable() && (!isset($keys['langcode']) || !isset($base_field_definitions[$keys['langcode']]) || !$base_field_definitions[$keys['langcode']]
      ->isTranslatable())) {
      throw new \LogicException("The {$entity_type->getLabel()} entity type cannot be translatable as it does not define a translatable \"langcode\" field.");
    }
    return $base_field_definitions;
  }

  /**
   * {@inheritdoc}
   */
  public function getFieldDefinitions($entity_type_id, $bundle) {
    if (!isset($this->fieldDefinitions[$entity_type_id][$bundle])) {
      $base_field_definitions = $this
        ->getBaseFieldDefinitions($entity_type_id);

      // Not prepared, try to load from cache.
      $cid = 'entity_bundle_field_definitions:' . $entity_type_id . ':' . $bundle . ':' . $this->languageManager
        ->getCurrentLanguage()
        ->getId();
      if ($cache = $this
        ->cacheGet($cid)) {
        $bundle_field_definitions = $cache->data;
      }
      else {

        // Rebuild the definitions and put it into the cache.
        $bundle_field_definitions = $this
          ->buildBundleFieldDefinitions($entity_type_id, $bundle, $base_field_definitions);
        $this
          ->cacheSet($cid, $bundle_field_definitions, Cache::PERMANENT, [
          'entity_types',
          'entity_field_info',
        ]);
      }

      // Field definitions consist of the bundle specific overrides and the
      // base fields, merge them together. Use array_replace() to replace base
      // fields with by bundle overrides and keep them in order, append
      // additional by bundle fields.
      $this->fieldDefinitions[$entity_type_id][$bundle] = array_replace($base_field_definitions, $bundle_field_definitions);
    }
    return $this->fieldDefinitions[$entity_type_id][$bundle];
  }

  /**
   * Builds field definitions for a specific bundle within an entity type.
   *
   * @param string $entity_type_id
   *   The entity type ID. Only entity types that implement
   *   \Drupal\Core\Entity\FieldableEntityInterface are supported.
   * @param string $bundle
   *   The bundle.
   * @param \Drupal\Core\Field\FieldDefinitionInterface[] $base_field_definitions
   *   The list of base field definitions.
   *
   * @return \Drupal\Core\Field\FieldDefinitionInterface[]
   *   An array of bundle field definitions, keyed by field name. Does
   *   not include base fields.
   */
  protected function buildBundleFieldDefinitions($entity_type_id, $bundle, array $base_field_definitions) {
    $entity_type = $this->entityTypeManager
      ->getDefinition($entity_type_id);
    $class = $entity_type
      ->getClass();

    // Allow the entity class to provide bundle fields and bundle-specific
    // overrides of base fields.
    $bundle_field_definitions = $class::bundleFieldDefinitions($entity_type, $bundle, $base_field_definitions);

    // Load base field overrides from configuration. These take precedence over
    // base field overrides returned above.
    $base_field_override_ids = array_map(function ($field_name) use ($entity_type_id, $bundle) {
      return $entity_type_id . '.' . $bundle . '.' . $field_name;
    }, array_keys($base_field_definitions));
    $base_field_overrides = $this->entityTypeManager
      ->getStorage('base_field_override')
      ->loadMultiple($base_field_override_ids);
    foreach ($base_field_overrides as $base_field_override) {

      /** @var \Drupal\Core\Field\Entity\BaseFieldOverride $base_field_override */
      $field_name = $base_field_override
        ->getName();
      $bundle_field_definitions[$field_name] = $base_field_override;
    }
    $provider = $entity_type
      ->getProvider();
    foreach ($bundle_field_definitions as $definition) {

      // @todo Remove this check once FieldDefinitionInterface exposes a proper
      //  provider setter. See https://www.drupal.org/node/2225961.
      if ($definition instanceof BaseFieldDefinition) {
        $definition
          ->setProvider($provider);
      }
    }

    // Retrieve base field definitions from modules.
    foreach ($this->moduleHandler
      ->getImplementations('entity_bundle_field_info') as $module) {
      $module_definitions = $this->moduleHandler
        ->invoke($module, 'entity_bundle_field_info', [
        $entity_type,
        $bundle,
        $base_field_definitions,
      ]);
      if (!empty($module_definitions)) {

        // Ensure the provider key actually matches the name of the provider
        // defining the field.
        foreach ($module_definitions as $field_name => $definition) {

          // @todo Remove this check once FieldDefinitionInterface exposes a
          //  proper provider setter. See https://www.drupal.org/node/2225961.
          if ($definition instanceof BaseFieldDefinition) {
            $definition
              ->setProvider($module);
          }
          $bundle_field_definitions[$field_name] = $definition;
        }
      }
    }

    // Automatically set the field name, target entity type and bundle
    // for non-configurable fields.
    foreach ($bundle_field_definitions as $field_name => $field_definition) {
      if ($field_definition instanceof BaseFieldDefinition) {
        $field_definition
          ->setName($field_name);
        $field_definition
          ->setTargetEntityTypeId($entity_type_id);
        $field_definition
          ->setTargetBundle($bundle);
      }
    }

    // Invoke 'per bundle' alter hook.
    $this->moduleHandler
      ->alter('entity_bundle_field_info', $bundle_field_definitions, $entity_type, $bundle);
    return $bundle_field_definitions;
  }

  /**
   * {@inheritdoc}
   */
  public function getFieldStorageDefinitions($entity_type_id) {
    if (!isset($this->fieldStorageDefinitions[$entity_type_id])) {
      $this->fieldStorageDefinitions[$entity_type_id] = [];

      // Add all non-computed base fields.
      foreach ($this
        ->getBaseFieldDefinitions($entity_type_id) as $field_name => $definition) {
        if (!$definition
          ->isComputed()) {
          $this->fieldStorageDefinitions[$entity_type_id][$field_name] = $definition;
        }
      }

      // Not prepared, try to load from cache.
      $cid = 'entity_field_storage_definitions:' . $entity_type_id . ':' . $this->languageManager
        ->getCurrentLanguage()
        ->getId();
      if ($cache = $this
        ->cacheGet($cid)) {
        $field_storage_definitions = $cache->data;
      }
      else {

        // Rebuild the definitions and put it into the cache.
        $field_storage_definitions = $this
          ->buildFieldStorageDefinitions($entity_type_id);
        $this
          ->cacheSet($cid, $field_storage_definitions, Cache::PERMANENT, [
          'entity_types',
          'entity_field_info',
        ]);
      }
      $this->fieldStorageDefinitions[$entity_type_id] += $field_storage_definitions;
    }
    return $this->fieldStorageDefinitions[$entity_type_id];
  }

  /**
   * {@inheritdoc}
   */
  public function setFieldMap(array $field_map) {
    $this->fieldMap = $field_map;
    return $this;
  }

  /**
   * {@inheritdoc}
   */
  public function getFieldMap() {
    if (!$this->fieldMap) {

      // Not prepared, try to load from cache.
      $cid = 'entity_field_map';
      if ($cache = $this
        ->cacheGet($cid)) {
        $this->fieldMap = $cache->data;
      }
      else {

        // The field map is built in two steps. First, add all base fields, by
        // looping over all fieldable entity types. They always exist for all
        // bundles, and we do not expect to have so many different entity
        // types for this to become a bottleneck.
        foreach ($this->entityTypeManager
          ->getDefinitions() as $entity_type_id => $entity_type) {
          if ($entity_type
            ->isSubclassOf(FieldableEntityInterface::class)) {
            $bundles = array_keys($this->entityTypeBundleInfo
              ->getBundleInfo($entity_type_id));
            foreach ($this
              ->getBaseFieldDefinitions($entity_type_id) as $field_name => $base_field_definition) {
              $this->fieldMap[$entity_type_id][$field_name] = [
                'type' => $base_field_definition
                  ->getType(),
                'bundles' => array_combine($bundles, $bundles),
              ];
            }
          }
        }

        // In the second step, the per-bundle fields are added, based on the
        // persistent bundle field map stored in a key value collection. This
        // data is managed in the EntityManager::onFieldDefinitionCreate()
        // and EntityManager::onFieldDefinitionDelete() methods. Rebuilding this
        // information in the same way as base fields would not scale, as the
        // time to query would grow exponentially with more fields and bundles.
        // A cache would be deleted during cache clears, which is the only time
        // it is needed, so a key value collection is used.
        $bundle_field_maps = $this->keyValueFactory
          ->get('entity.definitions.bundle_field_map')
          ->getAll();
        foreach ($bundle_field_maps as $entity_type_id => $bundle_field_map) {
          foreach ($bundle_field_map as $field_name => $map_entry) {
            if (!isset($this->fieldMap[$entity_type_id][$field_name])) {
              $this->fieldMap[$entity_type_id][$field_name] = $map_entry;
            }
            else {
              $this->fieldMap[$entity_type_id][$field_name]['bundles'] += $map_entry['bundles'];
            }
          }
        }
        $this
          ->cacheSet($cid, $this->fieldMap, Cache::PERMANENT, [
          'entity_types',
        ]);
      }
    }
    return $this->fieldMap;
  }

  /**
   * {@inheritdoc}
   */
  public function getFieldMapByFieldType($field_type) {
    if (!isset($this->fieldMapByFieldType[$field_type])) {
      $filtered_map = [];
      $map = $this
        ->getFieldMap();
      foreach ($map as $entity_type => $fields) {
        foreach ($fields as $field_name => $field_info) {
          if ($field_info['type'] == $field_type) {
            $filtered_map[$entity_type][$field_name] = $field_info;
          }
        }
      }
      $this->fieldMapByFieldType[$field_type] = $filtered_map;
    }
    return $this->fieldMapByFieldType[$field_type];
  }

  /**
   * Builds field storage definitions for an entity type.
   *
   * @param string $entity_type_id
   *   The entity type ID. Only entity types that implement
   *   \Drupal\Core\Entity\FieldableEntityInterface are supported
   *
   * @return \Drupal\Core\Field\FieldStorageDefinitionInterface[]
   *   An array of field storage definitions, keyed by field name.
   */
  protected function buildFieldStorageDefinitions($entity_type_id) {
    $entity_type = $this->entityTypeManager
      ->getDefinition($entity_type_id);
    $field_definitions = [];

    // Retrieve base field definitions from modules.
    foreach ($this->moduleHandler
      ->getImplementations('entity_field_storage_info') as $module) {
      $module_definitions = $this->moduleHandler
        ->invoke($module, 'entity_field_storage_info', [
        $entity_type,
      ]);
      if (!empty($module_definitions)) {

        // Ensure the provider key actually matches the name of the provider
        // defining the field.
        foreach ($module_definitions as $field_name => $definition) {

          // @todo Remove this check once FieldDefinitionInterface exposes a
          //  proper provider setter. See https://www.drupal.org/node/2225961.
          if ($definition instanceof BaseFieldDefinition) {
            $definition
              ->setProvider($module);
          }
          $field_definitions[$field_name] = $definition;
        }
      }
    }

    // Invoke alter hook.
    $this->moduleHandler
      ->alter('entity_field_storage_info', $field_definitions, $entity_type);
    return $field_definitions;
  }

  /**
   * {@inheritdoc}
   */
  public function clearCachedFieldDefinitions() {
    $this->baseFieldDefinitions = [];
    $this->fieldDefinitions = [];
    $this->fieldStorageDefinitions = [];
    $this->fieldMap = [];
    $this->fieldMapByFieldType = [];
    $this->entityDisplayRepository
      ->clearDisplayModeInfo();
    $this->extraFields = [];
    Cache::invalidateTags([
      'entity_field_info',
    ]);

    // The typed data manager statically caches prototype objects with injected
    // definitions, clear those as well.
    $this->typedDataManager
      ->clearCachedDefinitions();
  }

  /**
   * {@inheritdoc}
   */
  public function useCaches($use_caches = FALSE) {
    $this->useCaches = $use_caches;
    if (!$use_caches) {
      $this->fieldDefinitions = [];
      $this->baseFieldDefinitions = [];
      $this->fieldStorageDefinitions = [];
    }
  }

  /**
   * {@inheritdoc}
   */
  public function getExtraFields($entity_type_id, $bundle) {

    // Read from the "static" cache.
    if (isset($this->extraFields[$entity_type_id][$bundle])) {
      return $this->extraFields[$entity_type_id][$bundle];
    }

    // Read from the persistent cache. Since hook_entity_extra_field_info() and
    // hook_entity_extra_field_info_alter() might contain t() calls, we cache
    // per language.
    $cache_id = 'entity_bundle_extra_fields:' . $entity_type_id . ':' . $bundle . ':' . $this->languageManager
      ->getCurrentLanguage()
      ->getId();
    $cached = $this
      ->cacheGet($cache_id);
    if ($cached) {
      $this->extraFields[$entity_type_id][$bundle] = $cached->data;
      return $this->extraFields[$entity_type_id][$bundle];
    }
    $extra = $this->moduleHandler
      ->invokeAll('entity_extra_field_info');
    $this->moduleHandler
      ->alter('entity_extra_field_info', $extra);
    $info = isset($extra[$entity_type_id][$bundle]) ? $extra[$entity_type_id][$bundle] : [];
    $info += [
      'form' => [],
      'display' => [],
    ];

    // Store in the 'static' and persistent caches.
    $this->extraFields[$entity_type_id][$bundle] = $info;
    $this
      ->cacheSet($cache_id, $info, Cache::PERMANENT, [
      'entity_field_info',
    ]);
    return $this->extraFields[$entity_type_id][$bundle];
  }

}

Members

Name	Modifiers	Type	Description	Overrides
EntityFieldManager::$baseFieldDefinitions	protected	property	Static cache of base field definitions.
EntityFieldManager::$entityDisplayRepository	protected	property	The entity display repository.
EntityFieldManager::$entityTypeBundleInfo	protected	property	The entity type bundle info.
EntityFieldManager::$entityTypeManager	protected	property	The entity type manager.
EntityFieldManager::$extraFields	protected	property	Extra fields by bundle.
EntityFieldManager::$fieldDefinitions	protected	property	Static cache of field definitions per bundle and entity type.
EntityFieldManager::$fieldMap	protected	property	An array keyed by entity type. Each value is an array whose keys are field names and whose value is an array with two entries:
EntityFieldManager::$fieldMapByFieldType	protected	property	An array keyed by field type. Each value is an array whose key are entity types including arrays in the same form that $fieldMap.
EntityFieldManager::$fieldStorageDefinitions	protected	property	Static cache of field storage definitions per entity type.
EntityFieldManager::$keyValueFactory	protected	property	The key-value factory.
EntityFieldManager::$languageManager	protected	property	The language manager.
EntityFieldManager::$moduleHandler	protected	property	The module handler.
EntityFieldManager::$typedDataManager	protected	property	The typed data manager.
EntityFieldManager::buildBaseFieldDefinitions	protected	function	Builds base field definitions for an entity type.
EntityFieldManager::buildBundleFieldDefinitions	protected	function	Builds field definitions for a specific bundle within an entity type.
EntityFieldManager::buildFieldStorageDefinitions	protected	function	Builds field storage definitions for an entity type.
EntityFieldManager::clearCachedFieldDefinitions	public	function	Clears static and persistent field definition caches. Overrides EntityFieldManagerInterface::clearCachedFieldDefinitions
EntityFieldManager::getBaseFieldDefinitions	public	function	Gets the base field definitions for a content entity type. Overrides EntityFieldManagerInterface::getBaseFieldDefinitions
EntityFieldManager::getExtraFields	public	function	Gets the "extra fields" for a bundle. Overrides EntityFieldManagerInterface::getExtraFields
EntityFieldManager::getFieldDefinitions	public	function	Gets the field definitions for a specific bundle. Overrides EntityFieldManagerInterface::getFieldDefinitions
EntityFieldManager::getFieldMap	public	function	Gets a lightweight map of fields across bundles. Overrides EntityFieldManagerInterface::getFieldMap
EntityFieldManager::getFieldMapByFieldType	public	function	Gets a lightweight map of fields across bundles filtered by field type. Overrides EntityFieldManagerInterface::getFieldMapByFieldType
EntityFieldManager::getFieldStorageDefinitions	public	function	Gets the field storage definitions for a content entity type. Overrides EntityFieldManagerInterface::getFieldStorageDefinitions
EntityFieldManager::setFieldMap	public	function	Sets a lightweight map of fields across bundles. Overrides EntityFieldManagerInterface::setFieldMap
EntityFieldManager::useCaches	public	function	Disable the use of caches. Overrides EntityFieldManagerInterface::useCaches
EntityFieldManager::__construct	public	function	Constructs a new EntityFieldManager.
StringTranslationTrait::$stringTranslation	protected	property	The string translation service.
StringTranslationTrait::formatPlural	protected	function	Formats a string containing a count of items.
StringTranslationTrait::getNumberOfPlurals	protected	function	Returns the number of plurals supported by a given language.
StringTranslationTrait::getStringTranslation	protected	function	Gets the string translation service.
StringTranslationTrait::setStringTranslation	public	function	Sets the string translation service to use.	2
StringTranslationTrait::t	protected	function	Translates a string to the current language or to a given language.
UseCacheBackendTrait::$cacheBackend	protected	property	Cache backend instance.
UseCacheBackendTrait::$useCaches	protected	property	Flag whether caches should be used or skipped.
UseCacheBackendTrait::cacheGet	protected	function	Fetches from the cache backend, respecting the use caches flag.
UseCacheBackendTrait::cacheSet	protected	function	Stores data in the persistent cache, respecting the use caches flag.

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class EntityFieldManager in Zircon Profile 8

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