Github user arunmahadevan commented on a diff in the pull request: https://github.com/apache/storm/pull/939#discussion_r48323081 --- Diff: storm-core/src/jvm/backtype/storm/spout/CheckPointState.java --- @@ -0,0 +1,78 @@ +/** + * Licensed to the Apache Software Foundation (ASF) under one + * or more contributor license agreements. See the NOTICE file + * distributed with this work for additional information + * regarding copyright ownership. The ASF licenses this file + * to you 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 backtype.storm.spout; + +/** + * Captures the current state of the transaction in + * {@link CheckpointSpout} + */ +public class CheckPointState { + public long txid; + public State state; + + public enum State { + /** + * The checkpoint spout has committed the transaction. + */ + COMMITTED, + /** + * The checkpoint spout has started committing the transaction. + */ + COMMITTING, --- End diff -- Named it COMMITTING and PREPARING since its short. We could probably have it as COMMIT_IN_PROGRESS and PREPARE_IN_PROGRESS. Prefer to keep it short and can add more comments.
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