--- a/src/java/de/intevation/mxd/reader/ArrowMarkerSymbolReader.java	Tue May 24 14:16:25 2011 +0200
+++ b/src/java/de/intevation/mxd/reader/ArrowMarkerSymbolReader.java	Tue May 24 16:51:01 2011 +0200
@@ -48,6 +48,18 @@
         }
     }
 
+    public ArrowMarkerSymbolReader(IMarkerSymbol symbol)
+    throws Exception {
+        logger.debug("contructor()");
+        if(symbol instanceof ArrowMarkerSymbol) {
+            this.symbol = (ArrowMarkerSymbol)symbol;
+        }
+        else {
+            throw new Exception("Not a ArrowMarkerSymbol!");
+        }
+    }
+
+
     /**
      * Setter for the parent XML element.
      *