--- a/gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java	Mon Sep 28 09:53:17 2009 +0000
+++ b/gnv-artifacts/src/main/java/de/intevation/gnv/transition/timeseries/TimeSeriesOutputTransition.java	Mon Sep 28 10:20:41 2009 +0000
@@ -32,6 +32,7 @@
 import de.intevation.gnv.chart.exception.TechnicalChartException;
 import de.intevation.gnv.geobackend.base.Result;
 import de.intevation.gnv.statistics.Statistic;
+import de.intevation.gnv.statistics.Statistics;
 import de.intevation.gnv.statistics.TimeseriesStatistics;
 import de.intevation.gnv.statistics.exception.StatisticsException;
 import de.intevation.gnv.transition.InputData;
@@ -129,8 +130,8 @@
                 }
             }else if (outputMode.equalsIgnoreCase("statistics")){
                 log.debug("Statistics will be generated.");
-                TimeseriesStatistics tss = new TimeseriesStatistics();
-                Collection<Statistic> statistics = tss.calculateStatistics(this.chartResult);
+                Statistics s = getStatisticsGenerator();
+                Collection<Statistic> statistics = s.calculateStatistics(this.chartResult);
                 Document doc = this.writeStatistics2XML(statistics);
                 this.writeDocument2OutputStream(doc, outputStream);
             }
@@ -145,6 +146,14 @@
             throw new TransitionException(e);
         }
     }
+
+    /**
+     * @return
+     */
+    protected Statistics getStatisticsGenerator() {
+        Statistics s = new TimeseriesStatistics();
+        return s;
+    }
     
     protected void writeDocument2OutputStream(Document document, OutputStream os){