@Override
  public boolean equals(Object o) {
    if (this == o) return true;
    if (o == null || getClass() != o.getClass()) return false;

    EventImpl<?, ?> event = (EventImpl<?, ?>) o;

    if (originLocal != event.originLocal) return false;
    if (pre != event.pre) return false;
    if (transactionSuccessful != event.transactionSuccessful) return false;
    if (cache != null ? !cache.equals(event.cache) : event.cache != null) return false;
    if (key != null ? !key.equals(event.key) : event.key != null) return false;
    if (transaction != null ? !transaction.equals(event.transaction) : event.transaction != null)
      return false;
    if (type != event.type) return false;
    if (value != null ? !value.equals(event.value) : event.value != null) return false;
    if (!Util.safeEquals(consistentHashAtStart, event.consistentHashAtStart)) return false;
    if (!Util.safeEquals(consistentHashAtEnd, event.consistentHashAtEnd)) return false;
    if (!Util.safeEquals(unionConsistentHash, event.unionConsistentHash)) return false;
    if (newTopologyId != event.newTopologyId) return false;
    if (created != event.created) return false;
    if (oldValue != null ? !oldValue.equals(event.oldValue) : event.oldValue != null) return false;

    return true;
  }