EntityViewsDataInterface.php

<?php

namespace Drupal\views;

use Drupal\Core\Entity\EntityTypeInterface;

/**
 * Provides an interface to integrate an entity type with views.
 */
interface EntityViewsDataInterface {
    
    /**
     * Returns views data for the entity type.
     *
     * @return array
     *   Views data in the format of hook_views_data().
     */
    public function getViewsData();
    
    /**
     * Gets the table of an entity type to be used as base table in views.
     *
     * @param \Drupal\Core\Entity\EntityTypeInterface $entity_type
     *   The entity type.
     *
     * @return string
     *   The name of the base table in views.
     */
    public function getViewsTableForEntityType(EntityTypeInterface $entity_type);

}