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The OpenTripPlanner multimodal journey planning system

There is a newer version: 2.6.0

package org.opentripplanner.common.model;

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

/**
 * An ordered pair of objects of potentially different types
 */
public class T2 implements Serializable {

  private static final long serialVersionUID = 1L;

  public final E1 first;

  public final E2 second;

  public T2(E1 first, E2 second) {
    this.first = first;
    this.second = second;
  }

  @Override
  public int hashCode() {
    return (first != null ? first.hashCode() : 0) + (second != null ? second.hashCode() : 0);
  }

  @Override
  public boolean equals(Object object) {
    if (!(object instanceof T2)) {
      return false;
    }
    var other = (T2) object;
    return Objects.equals(first, other.first) && Objects.equals(second, other.second);
  }

  @Override
  public String toString() {
    return "T2(" + first + ", " + second + ")";
  }
}