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 org.apache.beam.sdk.state;
  
  import org.apache.beam.sdk.PipelineRunner;
  import org.apache.beam.sdk.annotations.Internal;
  import org.apache.beam.sdk.options.PipelineOptions;
  import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
  import org.apache.beam.sdk.values.PCollectionView;
  
  /** <b><i>For internal use only; no backwards-compatibility guarantees.</i></b> */
  @Internal
  public interface StateContext<W extends BoundedWindow> {
    /** Returns the {@code PipelineOptions} specified with the {@link PipelineRunner}. */
    PipelineOptions getPipelineOptions();
  
    /** Returns the value of the side input for the corresponding state window. */
    <T> T sideInput(PCollectionView<T> view);
  
    /** Returns the window corresponding to the state. */
    W window();
  }
  