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
   * <p/>
   * http://www.apache.org/licenses/LICENSE-2.0
   * <p/>
   * 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.windowing.strategy;
  
  import backtype.storm.windowing.EvictionPolicy;
  import backtype.storm.windowing.TriggerHandler;
  import backtype.storm.windowing.TriggerPolicy;
  
  /**
   * Strategy for windowing which will have respective trigger and eviction policies.
   */
  public interface WindowStrategy<T> {
  
      /**
       * Returns a {@code TriggerPolicy}  by creating with {@code triggerHandler} and {@code evictionPolicy} with
       * the given configuration.
       */
      TriggerPolicy<T> getTriggerPolicy(TriggerHandler triggerHandler, EvictionPolicy<T> evictionPolicy);
  
      /**
       * Returns an {@code EvictionPolicy} instance for this strategy with the given configuration.
       */
      EvictionPolicy<T> getEvictionPolicy();
  }
  