sketching model elements for meter objects.

Change-Id: Ie9e8eb2af634f2f591089445d2258495285dcdd1
diff --git a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
index 1c34f66..5c9940c 100644
--- a/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
+++ b/providers/openflow/meter/src/main/java/org/onosproject/provider/of/meter/impl/OpenFlowMeterProvider.java
@@ -19,6 +19,9 @@
 import org.apache.felix.scr.annotations.Component;
 import org.apache.felix.scr.annotations.Reference;
 import org.apache.felix.scr.annotations.ReferenceCardinality;
+import org.onosproject.net.DeviceId;
+import org.onosproject.net.meter.MeterOperation;
+import org.onosproject.net.meter.MeterOperations;
 import org.onosproject.net.meter.MeterProvider;
 import org.onosproject.net.provider.AbstractProvider;
 import org.onosproject.net.provider.ProviderId;
@@ -45,4 +48,14 @@
     public OpenFlowMeterProvider() {
         super(new ProviderId("of", "org.onosproject.provider.meter"));
     }
+
+    @Override
+    public void performMeterOperation(DeviceId deviceId, MeterOperations meterOps) {
+
+    }
+
+    @Override
+    public void performMeterOperation(DeviceId deviceId, MeterOperation meterOp) {
+
+    }
 }