2 * Copyright (c) 2015 Cisco Systems, Inc. and others. All rights reserved.
4 * This program and the accompanying materials are made available under the
5 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
6 * and is available at http://www.eclipse.org/legal/epl-v10.html
8 package org.opendaylight.controller.cluster.datastore;
10 import org.opendaylight.controller.cluster.datastore.messages.RegisterChangeListener;
11 import org.opendaylight.controller.md.sal.common.api.data.AsyncDataChangeListener;
12 import org.opendaylight.yangtools.concepts.ListenerRegistration;
13 import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
14 import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNode;
16 final class DelayedListenerRegistration implements
17 ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>>> {
19 private volatile boolean closed;
21 private final RegisterChangeListener registerChangeListener;
23 private volatile ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
24 NormalizedNode<?, ?>>> delegate;
26 DelayedListenerRegistration(final RegisterChangeListener registerChangeListener) {
27 this.registerChangeListener = registerChangeListener;
30 void setDelegate( final ListenerRegistration<AsyncDataChangeListener<YangInstanceIdentifier,
31 NormalizedNode<?, ?>>> registration) {
32 this.delegate = registration;
39 RegisterChangeListener getRegisterChangeListener() {
40 return registerChangeListener;
44 public AsyncDataChangeListener<YangInstanceIdentifier, NormalizedNode<?, ?>> getInstance() {
45 return delegate != null ? delegate.getInstance() : null;
51 if(delegate != null) {