Implement functions for flushing db query caches

redfam.py

@@ -107,6 +107,13 @@ class RedFam:
         else:
             self._fam_hash = h.hexdigest()
         
+    @classmethod
+    def flush_db_cache( cls ):
+        """
+        Calls flush method of Mysql Interface class
+        """
+        MysqlRedFam.flush()
+
 
 class RedFamParser( RedFam ):
     """