-/*
- * Copyright (c) 2015 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.mdsal.dom.api;
-
-import org.eclipse.jdt.annotation.NonNullByDefault;
-import org.opendaylight.yangtools.concepts.Registration;
-
-/**
- * A {@link DOMDataBroker.Extension} which allows users to register for changes to a subtree.
- */
-@NonNullByDefault
-public interface DOMDataTreeChangeService extends DOMDataBroker.Extension {
- /**
- * Registers a {@link DOMDataTreeChangeListener} to receive notifications when data changes under a given path in
- * the conceptual data tree.
- *
- * <p>
- * You are able to register for notifications for any node or subtree which can be represented using
- * {@link DOMDataTreeIdentifier}.
- *
- * <p>
- * You are able to register for data change notifications for a subtree or leaf even if it does not exist. You will
- * receive notification once that node is created.
- *
- * <p>
- * If there is any pre-existing data in the data tree for the path for which you are registering, you will receive
- * an initial data change event, which will contain all pre-existing data, marked as created.
- *
- * <p>
- * This method returns a {@link Registration} object. To "unregister" your listener for changes call
- * the {@link Registration#close()} method on the returned object.
- *
- * <p>
- * You MUST explicitly unregister your listener when you no longer want to receive notifications. This is especially
- * true in OSGi environments, where failure to do so during bundle shutdown can lead to stale listeners being still
- * registered.
- *
- * @param treeId Data tree identifier of the subtree which should be watched for changes.
- * @param listener Listener instance which is being registered
- * @return A {@link Registration} object, which may be used to unregister your listener using
- * {@link Registration#close()} to stop delivery of change events.
- * @throws NullPointerException if any of the arguments is {@code null}
- */
- Registration registerDataTreeChangeListener(DOMDataTreeIdentifier treeId, DOMDataTreeChangeListener listener);
-}