Sketching cluster related stuff with Madan..
diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
index 71434c7..ba75ae9 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleService.java
@@ -23,6 +23,8 @@
      */
     Iterable<FlowEntry> getFlowEntries(DeviceId deviceId);
 
+    // TODO: add createFlowRule factory method and execute operations method
+
     /**
      * Applies the specified flow rules onto their respective devices. These
      * flow rules will be retained by the system and re-applied anytime the
@@ -46,9 +48,6 @@
     void removeFlowRules(FlowRule... flowRules);
 
 
-    // void addInitialFlowContributor(InitialFlowContributor contributor);
-    // void removeInitialFlowContributor(InitialFlowContributor contributor);
-
     /**
      * Adds the specified flow rule listener.
      *