class TestEntityBundleController

field_test_autoload_info in modules/field/tests/field_test/field_test.module

Implements hook_autoload_info().

field_test_entity_info in modules/field/tests/field_test/field_test.entity.inc

Implements hook_entity_info().

class TestEntityBundleController extends DefaultEntityController {

  protected function attachLoad(&$entities, $revision_id = FALSE) {
    // Add bundle information.
    foreach ($entities as $key => $entity) {
      $entity->fttype = 'test_entity_bundle';
      $entities[$key] = $entity;
    }
    parent::attachLoad($entities, $revision_id);
  }
}