1 files changed, 4 insertions, 7 deletions

diff --git a/src/de/lmu/ifi/dbs/elki/index/preprocessed/preference/AbstractPreferenceVectorIndex.java b/src/de/lmu/ifi/dbs/elki/index/preprocessed/preference/AbstractPreferenceVectorIndex.java
index dd43e027..80753ace 100644
--- a/src/de/lmu/ifi/dbs/elki/index/preprocessed/preference/AbstractPreferenceVectorIndex.java
+++ b/src/de/lmu/ifi/dbs/elki/index/preprocessed/preference/AbstractPreferenceVectorIndex.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.index.preprocessed.preference;
  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
@@ -23,15 +23,12 @@ package de.lmu.ifi.dbs.elki.index.preprocessed.preference;
  along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-import java.util.BitSet;
-
 import de.lmu.ifi.dbs.elki.data.NumberVector;
 import de.lmu.ifi.dbs.elki.data.type.TypeInformation;
 import de.lmu.ifi.dbs.elki.data.type.TypeUtil;
 import de.lmu.ifi.dbs.elki.database.ids.DBIDRef;
 import de.lmu.ifi.dbs.elki.database.relation.Relation;
 import de.lmu.ifi.dbs.elki.index.preprocessed.AbstractPreprocessorIndex;
-import de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizable;
 
 /**
  * Abstract base class for preference vector based algorithms.
@@ -40,7 +37,7 @@ import de.lmu.ifi.dbs.elki.utilities.optionhandling.Parameterizable;
  * 
  * @param <NV> Number vector
  */
-public abstract class AbstractPreferenceVectorIndex<NV extends NumberVector<?>> extends AbstractPreprocessorIndex<NV, BitSet> implements PreferenceVectorIndex<NV> {
+public abstract class AbstractPreferenceVectorIndex<NV extends NumberVector> extends AbstractPreprocessorIndex<NV, long[]> implements PreferenceVectorIndex<NV> {
   /**
    * Constructor.
    * 
@@ -51,7 +48,7 @@ public abstract class AbstractPreferenceVectorIndex<NV extends NumberVector<?>>
   }
 
   @Override
-  public BitSet getPreferenceVector(DBIDRef objid) {
+  public long[] getPreferenceVector(DBIDRef objid) {
     if(storage == null) {
       initialize();
     }
@@ -66,7 +63,7 @@ public abstract class AbstractPreferenceVectorIndex<NV extends NumberVector<?>>
    * @apiviz.stereotype factory
    * @apiviz.uses AbstractPreferenceVectorIndex oneway - - «create»
    */
-  public abstract static class Factory<V extends NumberVector<?>, I extends PreferenceVectorIndex<V>> implements PreferenceVectorIndex.Factory<V, I>, Parameterizable {
+  public abstract static class Factory<V extends NumberVector, I extends PreferenceVectorIndex<V>> implements PreferenceVectorIndex.Factory<V, I> {
     @Override
     public abstract I instantiate(Relation<V> relation);