/*
 * 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.flink.streaming.runtime.operators.windowing;

import org.apache.flink.streaming.api.windowing.windows.Window;

/**
 * Helper class for emitting a value along with the window information from
 * a {@link org.apache.flink.streaming.api.functions.windowing.WindowFunction}.
 */
public class WindowedValue<T, W extends Window> {
  private final T value;
  private final W window;

  public WindowedValue(T value, W window) {
    this.value = value;
    this.window = window;
  }

  public T value() {
    return value;
  }

  public W window() {
    return window;
  }

  @Override
  public String toString() {
    return "WindowedValue(" + value + ", " + window + ")";
  }
}