Sketched out changes to link resource service to support intent replacement mechanism.
diff --git a/core/net/src/main/java/org/onlab/onos/net/resource/impl/LinkResourceManager.java b/core/net/src/main/java/org/onlab/onos/net/resource/impl/LinkResourceManager.java
index ad15f56..75e0818 100644
--- a/core/net/src/main/java/org/onlab/onos/net/resource/impl/LinkResourceManager.java
+++ b/core/net/src/main/java/org/onlab/onos/net/resource/impl/LinkResourceManager.java
@@ -79,6 +79,12 @@
     }
 
     @Override
+    public LinkResourceAllocations updateResources(LinkResourceRequest req,
+                                                   LinkResourceAllocations oldAllocations) {
+        return null;
+    }
+
+    @Override
     public Iterable<LinkResourceAllocations> getAllocations() {
         // TODO Auto-generated method stub
         return null;
@@ -108,4 +114,10 @@
         return null;
     }
 
+    @Override
+    public ResourceRequest getAvailableResources(Link link,
+                                                 LinkResourceAllocations allocations) {
+        return null;
+    }
+
 }