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Jordan Halterman980a8c12017-09-22 18:01:19 -07001/*
2 * Copyright 2017-present Open Networking Foundation
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16package org.onosproject.store.cluster.messaging;
17
18import com.google.common.annotations.Beta;
19
20/**
21 * Service for unified communication across controller nodes running multiple software versions.
22 * <p>
23 * This service supports communicating across nodes running different versions of the software simultaneously. During
24 * upgrades, when nodes may be running a mixture of versions, this service can be used to coordinate across those
25 * versions. But users of this service must be extremely careful to preserve backward/forward compatibility for
26 * messages sent across versions. Encoders and decoders used for messages sent/received on this service should
27 * support evolving schemas.
28 */
29@Beta
30public interface UnifiedClusterCommunicationService extends ClusterCommunicator {
31}