1 files changed, 3 insertions, 4 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchical.java b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchical.java
index 697ac640..29909069 100644
--- a/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchical.java
+++ b/src/de/lmu/ifi/dbs/elki/utilities/datastructures/hierarchy/Hierarchical.java
@@ -23,10 +23,9 @@ package de.lmu.ifi.dbs.elki.utilities.datastructures.hierarchy;
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
+import java.util.Iterator;
 import java.util.List;
 
-import de.lmu.ifi.dbs.elki.utilities.iterator.IterableIterator;
-
 
 /**
  * Interface for objects with an <b>internal</b> hierarchy interface.
@@ -65,7 +64,7 @@ public interface Hierarchical<O> {
    * 
    * @return iterator for descendants
    */
-  public IterableIterator<O> iterDescendants();
+  public Iterator<O> iterDescendants();
   
   /**
    * Get number of parents
@@ -87,5 +86,5 @@ public interface Hierarchical<O> {
    * 
    * @return iterator for ancestors
    */
-  public IterableIterator<O> iterAncestors();
+  public Iterator<O> iterAncestors();
 }
 \ No newline at end of file