| /* |
| * Copyright 2016 Open Networking Laboratory |
| * |
| * 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.primitives.impl; |
| |
| import java.util.concurrent.CompletableFuture; |
| |
| import org.onosproject.store.primitives.TransactionId; |
| import org.onosproject.store.primitives.resources.impl.CommitResult; |
| import org.onosproject.store.primitives.resources.impl.PrepareResult; |
| import org.onosproject.store.primitives.resources.impl.RollbackResult; |
| |
| /** |
| * Participant in a two-phase commit protocol. |
| */ |
| public interface TransactionParticipant { |
| |
| /** |
| * Attempts to execute the prepare phase for the specified {@link Transaction transaction}. |
| * @param transaction transaction |
| * @return future for prepare result |
| */ |
| CompletableFuture<PrepareResult> prepare(Transaction transaction); |
| |
| /** |
| * Attempts to execute the commit phase for previously prepared transaction. |
| * @param transactionId transaction identifier |
| * @return future for commit result |
| */ |
| CompletableFuture<CommitResult> commit(TransactionId transactionId); |
| |
| /** |
| * Attempts to execute the rollback phase for previously prepared transaction. |
| * @param transactionId transaction identifier |
| * @return future for rollback result |
| */ |
| CompletableFuture<RollbackResult> rollback(TransactionId transactionId); |
| } |