diff -r 1c4e3fdba170 -r c114504de4a8 Model/DocumentInterface.php
--- a/Model/DocumentInterface.php	Thu Nov 24 13:05:33 2011 +0100
+++ b/Model/DocumentInterface.php	Sun Nov 27 23:35:54 2011 +0100
@@ -24,14 +24,14 @@
     
     
     /**
-     * TODO: Enter description here ...
+     * Set the external id i.e. the host document id
      *
      * @param text $externalId
      */
     function setExternalId($externalId);
     
     /**
-     * TODO: Enter description here ...
+     * Get the external id, i.e. the host document id
      */
     function getExternalId();