1 files changed, 39 insertions, 0 deletions
diff --git a/framework/src/onos/utils/misc/src/main/java/org/onlab/graph/Edge.java b/framework/src/onos/utils/misc/src/main/java/org/onlab/graph/Edge.java
new file mode 100644
index 00000000..1bbfbf99
--- /dev/null
+++ b/framework/src/onos/utils/misc/src/main/java/org/onlab/graph/Edge.java
@@ -0,0 +1,39 @@
+/*
+ * Copyright 2014 Open Networking Laboratory
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package org.onlab.graph;
+
+/**
+ * Representation of a graph edge.
+ *
+ * @param <V> vertex type
+ */
+public interface Edge<V extends Vertex> {
+
+    /**
+     * Returns the edge source vertex.
+     *
+     * @return source vertex
+     */
+    V src();
+
+    /**
+     * Returns the edge destination vertex.
+     *
+     * @return destination vertex
+     */
+    V dst();
+
+}