support for corsa pipeline. EXPERIMENTAL.

Change-Id: Ic3db0a7a18f11c41c8a84f25a249dfb63109da97
diff --git a/core/api/src/main/java/org/onosproject/net/flow/FlowRule.java b/core/api/src/main/java/org/onosproject/net/flow/FlowRule.java
index b03f620..462875a 100644
--- a/core/api/src/main/java/org/onosproject/net/flow/FlowRule.java
+++ b/core/api/src/main/java/org/onosproject/net/flow/FlowRule.java
@@ -40,7 +40,19 @@
         /* Used in flow entry for MPLS table */
         MPLS,
         /* Used in flow entry for ACL table */
-        ACL
+        ACL,
+
+        /* VLAN-to-MPLS table */
+        VLAN_MPLS,
+
+        /* VLAN table */
+        VLAN,
+
+        /* L2 table */
+        ETHER,
+
+        /* Class of Service table */
+        COS,
     }
 
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