--- a/gnv/src/main/java/de/intevation/gnv/action/CreateHistogramAction.java	Tue May 18 10:52:12 2010 +0000
+++ b/gnv/src/main/java/de/intevation/gnv/action/CreateHistogramAction.java	Tue May 18 11:09:33 2010 +0000
@@ -1,17 +1,16 @@
 package de.intevation.gnv.action;
 
-import de.intevation.gnv.action.sessionmodel.SessionModel;
-import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
-
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
 
 import org.apache.log4j.Logger;
-
 import org.apache.struts.action.ActionForm;
 import org.apache.struts.action.ActionForward;
 import org.apache.struts.action.ActionMapping;
 
+import de.intevation.gnv.action.sessionmodel.SessionModel;
+import de.intevation.gnv.action.sessionmodel.SessionModelFactory;
+
 /**
  * This controller is called to display histograms.<br>
  * An attribute 'histogram' on the request object is activated which inserts an
@@ -21,9 +20,15 @@
  */
 public class CreateHistogramAction extends DescribeUIAction {
 
+    /**
+     * the logger, used to log exceptions and additonaly information
+     */
     private static Logger logger = Logger.getLogger(CreateHistogramAction.class);
 
 
+    /**
+     * Constructor
+     */
     public CreateHistogramAction() {
         super();
     }