ONOS-2728: Define an interface to query about VLAN capability
Change-Id: I53444a7b76902a19548cdac1c557677848a46d1e
diff --git a/core/api/src/main/java/org/onosproject/net/behaviour/VlanQuery.java b/core/api/src/main/java/org/onosproject/net/behaviour/VlanQuery.java
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index 0000000..a1057c9
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+++ b/core/api/src/main/java/org/onosproject/net/behaviour/VlanQuery.java
@@ -0,0 +1,35 @@
+/*
+ * Copyright 2015 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.onosproject.net.behaviour;
+
+import com.google.common.annotations.Beta;
+import org.onosproject.net.PortNumber;
+import org.onosproject.net.driver.HandlerBehaviour;
+
+/**
+ * A HandlerBehaviour to check the capability of VLAN.
+ */
+@Beta
+public interface VlanQuery extends HandlerBehaviour {
+
+ /**
+ * Indicates if VLAN can be used at the port.
+ *
+ * @param port port to be checked for the capability
+ * @return true if VLAN can be used at the port, false otherwise.
+ */
+ boolean isEnabled(PortNumber port);
+}