@Override
  public void fromData(DataInput in,
      DeserializationContext context) throws IOException, ClassNotFoundException {
    uniqId = in.readInt();
    memberId = DSFIDFactory.readInternalDistributedMember(in);
  }
Constructor for the Transation Manager, the birth place of TXId objects. The object is
Serializable mainly because of the identifier type provided by JGroups.
geode-core/src/main/java/org/apache/geode/internal/cache/TXId.java