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.util;
  
  import java.util.Objects;
  import javax.annotation.Nullable;
  import org.apache.beam.sdk.annotations.Internal;
  
  /**
   * A {@code T} with an accompanying weight. Units are unspecified.
   *
   * @param <T> the underlying type of object
   */
  @Internal
  public final class WeightedValue<T> implements Weighted {
  
    private final T value;
    private final long weight;
  
    private WeightedValue(T value, long weight) {
      this.value = value;
      this.weight = weight;
    }
  
    public static <T> WeightedValue<T> of(T value, long weight) {
      return new WeightedValue<>(value, weight);
    }
  
    @Override
    public long getWeight() {
      return weight;
    }
  
    public T getValue() {
      return value;
    }
  
    @Override
    public boolean equals(@Nullable Object o) {
      if (this == o) {
        return true;
      }
      if (!(o instanceof WeightedValue)) {
        return false;
      }
      WeightedValue<?> that = (WeightedValue<?>) o;
      return weight == that.weight && Objects.equals(value, that.value);
    }
  
    @Override
    public int hashCode() {
      return Objects.hash(value, weight);
    }
  
    @Override
    public String toString() {
      return "WeightedValue{value=" + value + ", weight=" + weight + "}";
    }
  }
  