code: public static String getTransactionNameFromId(String parentStreamSegmentName, UUID transactionId) {
          StringBuilder result = new StringBuilder();
          result.append(parentStreamSegmentName);
          result.append(TRANSACTION_DELIMITER);
          result.append(String.format(FULL_HEX_FORMAT, transactionId.getMostSignificantBits()));
          result.append(String.format(FULL_HEX_FORMAT, transactionId.getLeastSignificantBits()));
          return result.toString();
      }
docs: Returns the transaction name for a TransactionStreamSegment based on the name of the current Parent StreamSegment, and the transactionId.
  
  @param parentStreamSegmentName The name of the Parent StreamSegment for this transaction.
  @param transactionId           The unique Id for the transaction.
  @return The name of the Transaction StreamSegmentId.