| /* |
| * Copyright 2017-present Open Networking Foundation |
| * |
| * 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.store.service; |
| |
| import com.google.common.annotations.Beta; |
| |
| /** |
| * Cross-version storage/coordination service. |
| * <p> |
| * This is a special type of {@link PrimitiveService} that differs semantically from {@link StorageService} in that |
| * it supports cross-version backward/forward compatible storage. During upgrades, when nodes are running different |
| * versions of the software, this service guarantees that cross-version compatibility will be maintained and provides |
| * shared compatible primitives for coordinating across versions. Users must ensure that all objects stored in |
| * primitives created via this service are stored using a serialization format that is backward/forward compatible, |
| * e.g. using {@link org.onlab.util.KryoNamespace.Builder#setCompatible(boolean)}. |
| * |
| * @see org.onlab.util.KryoNamespace.Builder#setCompatible(boolean) |
| * @see StorageService |
| */ |
| @Beta |
| public interface CoordinationService extends PrimitiveService { |
| } |