Update to Drupal 8.0.0-beta15. For more information, see: https://www.drupal.org/node/2563023

core/modules/migrate/src/Entity/MigrationInterface.php

@@ -166,6 +166,30 @@ interface MigrationInterface extends ConfigEntityInterface {
    */
   public function isComplete();
 
+  /**
+   * Set the current migration status.
+   *
+   * @param int $result
+   *   One of the STATUS_* constants.
+   */
+  public function setStatus($status);
+
+  /**
+   * Get the current migration status.
+   *
+   * @return int
+   *   The current migration status. Defaults to STATUS_IDLE.
+   */
+  public function getStatus();
+
+  /**
+   * Retrieve a label for the current status.
+   *
+   * @return string
+   *   User-friendly string corresponding to a STATUS_ constant.
+   */
+  public function getStatusLabel();
+
   /**
    * Set the migration result.
    *
@@ -182,6 +206,15 @@ interface MigrationInterface extends ConfigEntityInterface {
    */
   public function getMigrationResult();
 
+  /**
+   * Signal that the migration should be interrupted with the specified result
+   * code.
+   *
+   * @param int $result
+   *   One of the MigrationInterface::RESULT_* constants.
+   */
+  public function interruptMigration($result);
+
   /**
    * Get the normalized process pipeline configuration describing the process
    * plugins.