1 files changed, 4 insertions, 1 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchy.java b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchy.java
index fec9c7b4..7d751dc1 100644
--- a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchy.java
+++ b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchy.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy;
  This file is part of ELKI:
  Environment for Developing KDD-Applications Supported by Index-Structures
 
- Copyright (C) 2013
+ Copyright (C) 2014
  Ludwig-Maximilians-Universität München
  Lehr- und Forschungseinheit für Datenbanksysteme
  ELKI Development Team
@@ -113,5 +113,8 @@ public interface Hierarchy<O> {
      * @return Current object
      */
     O get();
+
+    @Override
+    Iter<O> advance();
   }
 }