--- a/artifacts/src/main/java/org/dive4elements/river/exports/process/DefaultProcessor.java	Fri Sep 20 19:17:49 2013 +0200
+++ b/artifacts/src/main/java/org/dive4elements/river/exports/process/DefaultProcessor.java	Fri Sep 20 19:18:04 2013 +0200
@@ -55,6 +55,12 @@
         return;
     }
 
+    @Override
+    public String getAxisLabel(DiagramGenerator generator) {
+        return "Please overwrite me in the implementation";
+    }
+
+
     /**
      * Returns true if the Processor class is able to generate output for a facet type
      *