[ONOS-3116] flowclassifierid modified

Change-Id: Ic54f13b829ead51eac7d0a1628956a1512cc5afe

@@ -15,11 +15,11 @@
  */
 package org.onosproject.vtnrsc;
 
-import java.util.Objects;
-import java.util.UUID;
-
 import com.google.common.base.MoreObjects;
 
+import java.util.UUID;
+import java.util.Objects;
+
 /**
  * Flow classification identifier.
  */
@@ -56,6 +56,15 @@ public final class FlowClassifierId {
         return new FlowClassifierId(UUID.fromString(flowClassifierId));
     }
 
+    /**
+     * Returns the value of flow classifier id.
+     *
+     * @return flow classifier id.
+     */
+    public UUID value() {
+        return flowClassifierId;
+    }
+
     @Override
     public int hashCode() {
         return Objects.hashCode(this.flowClassifierId);