text: /**
   * 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 storm.trident.planner;
  
  import backtype.storm.task.TopologyContext;
  import java.io.Serializable;
  import java.util.Map;
  import storm.trident.planner.processor.TridentContext;
  import storm.trident.tuple.TridentTuple.Factory;
  
  public interface TridentProcessor extends Serializable, TupleReceiver {
      
      // imperative that don't emit any tuples from here, since output factory cannot be gotten until
      // preparation is done, therefore, receivers won't be ready to receive tuples yet
      // can't emit tuples from here anyway, since it's not within a batch context (which is only
      // startBatch, execute, and finishBatch
      void prepare(Map conf, TopologyContext context, TridentContext tridentContext);
      void cleanup();
      
      void startBatch(ProcessorContext processorContext);
      
      void finishBatch(ProcessorContext processorContext);
      
      Factory getOutputFactory();
  }
  