1 files changed, 6 insertions, 5 deletions
diff --git a/src/de/lmu/ifi/dbs/elki/datasource/filter/AbstractConversionFilter.java b/src/de/lmu/ifi/dbs/elki/datasource/filter/AbstractConversionFilter.java
index 990458bf..34fb6bad 100644
--- a/src/de/lmu/ifi/dbs/elki/datasource/filter/AbstractConversionFilter.java
+++ b/src/de/lmu/ifi/dbs/elki/datasource/filter/AbstractConversionFilter.java
@@ -4,7 +4,7 @@ package de.lmu.ifi.dbs.elki.datasource.filter;
  This file is part of ELKI:
  Environment for Developing KDD-Applications Supported by Index-Structures
 
- Copyright (C) 2011
+ Copyright (C) 2012
  Ludwig-Maximilians-Universität München
  Lehr- und Forschungseinheit für Datenbanksysteme
  ELKI Development Team
@@ -65,10 +65,7 @@ public abstract class AbstractConversionFilter<I, O> implements ObjectFilter {
       // Get the replacement type information
       @SuppressWarnings("unchecked")
       final SimpleTypeInformation<I> castType = (SimpleTypeInformation<I>) type;
-      @SuppressWarnings("unchecked")
-      final List<O> castColumn = (List<O>) column;
-      bundle.appendColumn(convertedType(castType), castColumn);
-      
+
       // When necessary, perform an initialization scan
       if(prepareStart(castType)) {
         for(Object o : column) {
@@ -79,6 +76,10 @@ public abstract class AbstractConversionFilter<I, O> implements ObjectFilter {
         prepareComplete();
       }
 
+      @SuppressWarnings("unchecked")
+      final List<O> castColumn = (List<O>) column;
+      bundle.appendColumn(convertedType(castType), castColumn);
+
       // Normalization scan
       for(int i = 0; i < objects.dataLength(); i++) {
         @SuppressWarnings("unchecked")