LegendShortcuts

original.java

static class ExpirationSpec {
  @Nullable
  private final Long expireAfterAccessMillis;
  @Nullable
  private final Long expireAfterWriteMillis;

  private ExpirationSpec(Long expireAfterAccessMillis, Long expireAfterWriteMillis) {
    Preconditions.checkArgument(
        expireAfterAccessMillis == null || expireAfterWriteMillis == null);
    this.expireAfterAccessMillis = expireAfterAccessMillis;
    this.expireAfterWriteMillis = expireAfterWriteMillis;
  }

  public static ExpirationSpec afterAccess(long afterAccess, TimeUnit unit) {
    return new ExpirationSpec(unit.toMillis(afterAccess), null);
  }

  public static ExpirationSpec afterWrite(long afterWrite, TimeUnit unit) {
    return new ExpirationSpec(null, unit.toMillis(afterWrite));
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(expireAfterAccessMillis, expireAfterWriteMillis);
  }

  @Override
  public boolean equals(Object o) {
    if (o instanceof ExpirationSpec) {
      ExpirationSpec that = (ExpirationSpec) o;
      return Objects.equal(this.expireAfterAccessMillis, that.expireAfterAccessMillis)
          && Objects.equal(this.expireAfterWriteMillis, that.expireAfterWriteMillis);
    }
    return false;
  }

  @Override
  public String toString() {
    return Objects.toStringHelper(this)
        .add("expireAfterAccessMillis", expireAfterAccessMillis)
        .add("expireAfterWriteMillis", expireAfterWriteMillis)
        .toString();
  }
}

modified.java

static class DurationSpec {
  private final long duration;
  private final TimeUnit unit;

  private DurationSpec(long duration, TimeUnit unit) {
    this.duration = duration;
    this.unit = unit;
  }

  public static DurationSpec of(long duration, TimeUnit unit) {
    return new DurationSpec(duration, unit);
  }

  @Override
  public int hashCode() {
    return Objects.hashCode(duration, unit);
  }

  @Override
  public boolean equals(Object o) {
    if (o instanceof DurationSpec) {
      DurationSpec that = (DurationSpec) o;
      return unit.toNanos(duration) == that.unit.toNanos(that.duration);
    }
    return false;
  }

  @Override
  public String toString() {
    return Objects.toStringHelper(this)
        .add("duration", duration)
        .add("unit", unit)
        .toString();
  }
}