update NetworkGraph objects

- Use Object type instead of built-in
- Port number to Long

Change-Id: I30847b6cca801e58ca49dd9d1667cfd33a8ffb92
diff --git a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/Port.java b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/Port.java
index 453dd14..126bbab 100644
--- a/src/main/java/net/onrc/onos/ofcontroller/networkgraph/Port.java
+++ b/src/main/java/net/onrc/onos/ofcontroller/networkgraph/Port.java
@@ -10,11 +10,11 @@
  *
  */
 public interface Port {
-	public short getNumber();
-	public String getName();
-	public long getHardwareAddress();
+	public Long getNumber();
+	public Long getHardwareAddress();
 
 	public Switch getSwitch();
 
-	public Link getLink();
+	public Link getOutgoingLink();
+	public Link getIncomingLink();
 }