diff --git a/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/VirtualProviderRegistry.java b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/VirtualProviderRegistry.java
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+++ b/incubator/api/src/main/java/org/onosproject/incubator/net/virtual/provider/VirtualProviderRegistry.java
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+/*
+ * Copyright 2016-present 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.incubator.net.virtual.provider;
+
+import java.util.Set;
+
+/** Registry for tracking information virtual providers with the core.
+ * @param <P> type of the information virtual provider
+ * @param <S> type of the provider virtual service
+ */
+
+public interface VirtualProviderRegistry<P extends VirtualProvider,
+            S extends VirtualProviderService<P>> {
+
+    /**
+     * Registers the supplied virtual provider with the virtual core.
+     *
+     * @param provider virtual provider to be registered
+     * @return service for injecting information into core
+     * @throws java.lang.IllegalArgumentException if the provider is registered already
+     */
+    S register(P provider);
+
+    /**
+     * Unregisters the supplied virtual provider.
+     * As a result the previously issued virtual provider service
+     * will be invalidated and any subsequent invocations
+     * of its methods may throw {@link java.lang.IllegalStateException}.
+     * Unregistering a virtual provider that has not been previously registered
+     * result in a no-op.
+     *
+     * @param provider provider to be unregistered
+     */
+    void unregister(P provider);
+
+    /**
+     * Returns a set of currently registered virtual providers.
+     *
+     * @return set of virtual providers
+     */
+    Set<P> getProviders();
+}