MigrateIdMapInterface

class \Drupal\Tests\migrate\Kernel\Plugin\id_map\SqlIdMapTest implements \Drupal\Tests\migrate\Kernel\Plugin\id_map\Iterator extends \Drupal\Tests\migrate\Unit\TestSqlIdMap
class \Drupal\Tests\migrate\Unit\TestSqlIdMap implements \Drupal\Tests\migrate\Unit\Iterator extends \Drupal\migrate\Plugin\migrate\id_map\Sql
class \Drupal\migrate\Plugin\migrate\id_map\NullIdMap implements \Drupal\migrate\Plugin\MigrateIdMapInterface extends \Drupal\Core\Plugin\PluginBase
class \Drupal\migrate\Plugin\migrate\id_map\Sql implements \Drupal\migrate\Plugin\MigrateIdMapInterface, \Drupal\Core\Plugin\ContainerFactoryPluginInterface, \Drupal\migrate\Audit\HighestIdInterface extends \Drupal\Core\Plugin\PluginBase

Buggy or inaccurate documentation? Please file an issue. Need support? Need help programming? Connect with the Drupal community.