TopologyBatchTarget -> TopologyEvent

Change-Id: Ie68b5c7e8b245e3ebd335c91fd8097280e54572a
diff --git a/src/main/java/net/onrc/onos/core/topology/ITopologyListener2.java b/src/main/java/net/onrc/onos/core/topology/ITopologyListener2.java
index 9478599..563df86 100644
--- a/src/main/java/net/onrc/onos/core/topology/ITopologyListener2.java
+++ b/src/main/java/net/onrc/onos/core/topology/ITopologyListener2.java
@@ -18,5 +18,5 @@
      * @param changes topology events
      */
     public void topologyEvent(ImmutableTopology updated,
-            List<BatchOperationEntry<Operator, TopologyBatchTarget>> changes);
+            List<BatchOperationEntry<Operator, TopologyEvent>> changes);
 }