Renamed class PathComputation to FlowEventHandler to reflect better
its purpose.
diff --git a/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowEventHandlerService.java b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowEventHandlerService.java
new file mode 100644
index 0000000..78562e1
--- /dev/null
+++ b/src/main/java/net/onrc/onos/ofcontroller/flowmanager/IFlowEventHandlerService.java
@@ -0,0 +1,73 @@
+package net.onrc.onos.ofcontroller.flowmanager;
+
+import net.onrc.onos.ofcontroller.topology.TopologyElement;
+import net.onrc.onos.ofcontroller.util.FlowEntry;
+import net.onrc.onos.ofcontroller.util.FlowPath;
+
+/**
+ * Interface for providing Flow Event Handler Service to other modules.
+ */
+public interface IFlowEventHandlerService {
+ /**
+ * Receive a notification that a Flow is added.
+ *
+ * @param flowPath the Flow that is added.
+ */
+ void notificationRecvFlowAdded(FlowPath flowPath);
+
+ /**
+ * Receive a notification that a Flow is removed.
+ *
+ * @param flowPath the Flow that is removed.
+ */
+ void notificationRecvFlowRemoved(FlowPath flowPath);
+
+ /**
+ * Receive a notification that a Flow is updated.
+ *
+ * @param flowPath the Flow that is updated.
+ */
+ void notificationRecvFlowUpdated(FlowPath flowPath);
+
+ /**
+ * Receive a notification that a FlowEntry is added.
+ *
+ * @param flowEntry the FlowEntry that is added.
+ */
+ void notificationRecvFlowEntryAdded(FlowEntry flowEntry);
+
+ /**
+ * Receive a notification that a FlowEntry is removed.
+ *
+ * @param flowEntry the FlowEntry that is removed.
+ */
+ void notificationRecvFlowEntryRemoved(FlowEntry flowEntry);
+
+ /**
+ * Receive a notification that a FlowEntry is updated.
+ *
+ * @param flowEntry the FlowEntry that is updated.
+ */
+ void notificationRecvFlowEntryUpdated(FlowEntry flowEntry);
+
+ /**
+ * Receive a notification that a Topology Element is added.
+ *
+ * @param topologyElement the Topology Element that is added.
+ */
+ void notificationRecvTopologyElementAdded(TopologyElement topologyElement);
+
+ /**
+ * Receive a notification that a Topology Element is removed.
+ *
+ * @param topologyElement the Topology Element that is removed.
+ */
+ void notificationRecvTopologyElementRemoved(TopologyElement topologyElement);
+
+ /**
+ * Receive a notification that a Topology Element is updated.
+ *
+ * @param topologyElement the Topology Element that is updated.
+ */
+ void notificationRecvTopologyElementUpdated(TopologyElement topologyElement);
+}