EntityTypeRepositoryInterface.php

<?php

namespace Drupal\Core\Entity;


/**
 * Provides an interface for helper methods for loading entity types.
 */
interface EntityTypeRepositoryInterface {
    
    /**
     * Builds a list of entity type labels suitable for a Form API options list.
     *
     * @param bool $group
     *   (optional) Whether to group entity types by plugin group (e.g. 'content',
     *   'config'). Defaults to FALSE.
     *
     * @return array
     *   An array of entity type labels, keyed by entity type name.
     */
    public function getEntityTypeLabels($group = FALSE);
    
    /**
     * Gets the entity type ID based on the class that is called on.
     *
     * Compares the class this is called on against the known entity classes
     * and returns the entity type ID of a direct match or a subclass as fallback,
     * to support entity type definitions that were altered.
     *
     * @param string $class_name
     *   Class name to use for searching the entity type ID.
     *
     * @return string
     *   The entity type ID.
     *
     * @throws \Drupal\Core\Entity\Exception\AmbiguousEntityClassException
     *   Thrown when multiple subclasses correspond to the called class.
     * @throws \Drupal\Core\Entity\Exception\AmbiguousBundleClassException
     *   Thrown when multiple subclasses correspond to the called bundle class.
     * @throws \Drupal\Core\Entity\Exception\NoCorrespondingEntityClassException
     *   Thrown when no entity class corresponds to the called class.
     *
     * @see \Drupal\Core\Entity\Entity::load()
     * @see \Drupal\Core\Entity\Entity::loadMultiple()
     */
    public function getEntityTypeFromClass($class_name);

}