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.runners.dataflow.worker;
  
  import java.util.Objects;
  import org.apache.beam.sdk.transforms.windowing.BoundedWindow;
  import org.apache.beam.sdk.values.PCollectionView;
  import org.checkerframework.checker.nullness.qual.Nullable;
  
  /**
   * A pair of a {@link PCollectionView} and a {@link BoundedWindow}, which can be thought of as
   * window "of" the view. This is a value class for use e.g. as a compound cache key.
   *
   * @param <T> the type of the underlying PCollectionView
   */
  public final class PCollectionViewWindow<T> {
  
    private final PCollectionView<T> view;
    private final BoundedWindow window;
  
    private PCollectionViewWindow(PCollectionView<T> view, BoundedWindow window) {
      this.view = view;
      this.window = window;
    }
  
    public static <T> PCollectionViewWindow<T> of(PCollectionView<T> view, BoundedWindow window) {
      return new PCollectionViewWindow<>(view, window);
    }
  
    public PCollectionView<T> getView() {
      return view;
    }
  
    public BoundedWindow getWindow() {
      return window;
    }
  
    @Override
    public boolean equals(@Nullable Object otherObject) {
      if (!(otherObject instanceof PCollectionViewWindow)) {
        return false;
      }
      @SuppressWarnings("unchecked")
      PCollectionViewWindow<T> other = (PCollectionViewWindow<T>) otherObject;
      return getView().equals(other.getView()) && getWindow().equals(other.getWindow());
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(getView(), getWindow());
    }
  }
  