+/*
+ * Copyright (c) 2013 Cisco Systems, Inc. and others. All rights reserved.
+ *
+ * This program and the accompanying materials are made available under the
+ * terms of the Eclipse Public License v1.0 which accompanies this distribution,
+ * and is available at http://www.eclipse.org/legal/epl-v10.html
+ */
+package org.opendaylight.controller.sal.core.api.notify;
+
+import org.opendaylight.controller.sal.core.api.BrokerService;
+import org.opendaylight.controller.sal.core.api.Provider;
+import org.opendaylight.controller.sal.core.api.RpcImplementation;
+import org.opendaylight.controller.sal.core.api.Broker.ProviderSession;
+import org.opendaylight.yangtools.yang.common.QName;
+
+
+/**
+ * NotificationService provides access to the notification functionality of the
+ * SAL.
+ *
+ * NotificationService allows for consumption of notifications by registering
+ * implementations of NotificationListener.
+ *
+ * The registration of notification listeners could be done by:
+ * <ul>
+ * <li>returning an instance of implementation in the return value of
+ * {@link Provider#getProviderFunctionality()}
+ * <li>passing an instance of implementation and {@link QName} of rpc as an
+ * arguments to the
+ * {@link ProviderSession#addRpcImplementation(QName, RpcImplementation)}
+ * </ul>
+ *
+ *
+ */
+public interface NotificationService extends BrokerService {
+
+ /**
+ * Registers a notification listener for supplied notification type.
+ *
+ * @param notification
+ * @param listener
+ */
+ void addNotificationListener(QName notification,
+ NotificationListener listener);
+
+ /**
+ * Removes a notification listener for supplied notification type.
+ *
+ * @param notification
+ * @param listener
+ */
+ void removeNotificationListener(QName notification,
+ NotificationListener listener);
+}