content: /**
   * 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.topology;
  
  import java.util.Map;
  
  import backtype.storm.task.OutputCollector;
  import backtype.storm.task.TopologyContext;
  import backtype.storm.windowing.TupleWindow;
  
  /**
   * A bolt abstraction for supporting time and count based sliding & tumbling windows.
   */
  public interface IWindowedBolt extends IComponent {
      /**
       * This is similar to the {@link org.apache.storm.task.IBolt#prepare(Map, TopologyContext, OutputCollector)} except
       * that while emitting, the tuples are automatically anchored to the tuples in the inputWindow.
       */
      void prepare(Map stormConf, TopologyContext context, OutputCollector collector);
  
      /**
       * Process the tuple window and optionally emit new tuples based on the tuples in the input window.
       */
      void execute(TupleWindow inputWindow);
  
      void cleanup();
  }
  