DistributedFlowRuleStore: remote batch support

Change-Id: I373a942697624440e025a8022a13394396058a71
diff --git a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleBatchRequest.java b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleBatchRequest.java
index 0414fcb..34e3d31 100644
--- a/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleBatchRequest.java
+++ b/core/api/src/main/java/org/onlab/onos/net/flow/FlowRuleBatchRequest.java
@@ -9,10 +9,12 @@
 
 public class FlowRuleBatchRequest {
 
+    private final int batchId;
     private final List<FlowEntry> toAdd;
     private final List<FlowEntry> toRemove;
 
-    public FlowRuleBatchRequest(List<FlowEntry> toAdd, List<FlowEntry> toRemove) {
+    public FlowRuleBatchRequest(int batchId, List<FlowEntry> toAdd, List<FlowEntry> toRemove) {
+        this.batchId = batchId;
         this.toAdd = Collections.unmodifiableList(toAdd);
         this.toRemove = Collections.unmodifiableList(toRemove);
     }
@@ -35,4 +37,8 @@
         }
         return new FlowRuleBatchOperation(entries);
     }
+
+    public int batchId() {
+        return batchId;
+    }
 }