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/*
 * Copyright 2017 PingCAP, Inc.
 *
 * Licensed 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,
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.pingcap.tikv.util;

import java.io.Serializable;
import java.util.Objects;

public class Pair implements Serializable {
  public final F first;
  public final S second;

  public Pair(F f, S s) {
    first = f;
    second = s;
  }

  public static  Pair create(F f, S s) {
    return new Pair<>(f, s);
  }

  @Override
  public String toString() {
    return String.format("[%s:%s]", first, second);
  }

  @Override
  public boolean equals(Object o) {
    if (this == o) {
      return true;
    }
    if (o == null || getClass() != o.getClass()) {
      return false;
    }
    Pair pair = (Pair) o;
    return Objects.equals(first, pair.first) && Objects.equals(second, pair.second);
  }

  @Override
  public int hashCode() {
    return Objects.hash(first, second);
  }
}