Added getter needed for a usage in onos-app-samples

Change-Id: Idd5b2102d96a6a526bd08eb12de6edc64efcb443
diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
index d13955a..4a42a74 100644
--- a/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/domain/DomainEdge.java
@@ -29,6 +29,7 @@
  */
 @Beta
 public class DomainEdge extends AbstractEdge<DomainVertex> {
+
     ConnectPoint connectPoint;
 
     public DomainEdge(DomainVertex src, DomainVertex dst, ConnectPoint connectPoint) {
@@ -62,4 +63,13 @@
                 .add("connectPoint", connectPoint)
                 .toString();
     }
+
+    /**
+     * Returns the connect point associated with the domain edge.
+     *
+     * @return this edges connect point
+     */
+    public ConnectPoint connectPoint() {
+        return connectPoint;
+    }
 }