updateOther(ringId, otherRingId) {
    if (this.firstRingId === otherRingId) {
      this.secondRingId = ringId;
    } else {
      this.firstRingId = ringId;
    }
  }
Update the ring id of this ring connection that is not the ring id supplied as the second argument.

@param {Number} ringId A ring id. The new ring id to be set.
@param {Number} otherRingId A ring id. The id that is NOT to be updated.