| /** |
| * 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 com.alibaba.jstorm.batch; |
| |
| import java.io.Serializable; |
| |
| import backtype.storm.topology.IBasicBolt; |
| |
| public interface IBatchSpout extends IBasicBolt, ICommitter, Serializable { |
| |
| /** |
| * input's filed 0 is BatchId |
| * |
| * execute only receive trigger message |
| * |
| * do emitBatch operation in execute whose streamID is "batch/compute-stream" |
| */ |
| // void execute(Tuple input, IBasicOutputCollector collector); |
| /** |
| * begin to ack batchId's data |
| * |
| * return value will be stored in ZK, so sometimes don't need special action |
| * |
| * @param id |
| */ |
| // byte[] commit(BatchId id) throws FailedException; |
| |
| /** |
| * begin to revert batchId's data |
| * |
| * If current task fails to commit batchId, it won't call revert(batchId) If current task fails to revert batchId, JStorm won't call revert again. |
| * |
| * if not transaction, it can don't care revert |
| * |
| * @param id |
| */ |
| // void revert(BatchId id, byte[] commitResult); |
| } |