Method next

sdk/java/src/main/java/com/chain/api/Transaction.java:1157–1172

Retrieves the next transaction matching the feed's filter criteria. If no such transaction is available, this method will block until a matching transaction arrives in the blockchain, or if the specified timeout is reached. To avoid client-side timeouts, be sure to call {@link Client#setReadTimeout(

(Client client, long timeout)

     * @throws ChainException
     */
    public Transaction next(Client client, long timeout) throws ChainException {
      if (txIter == null || !txIter.hasNext()) {
        txIter =
            new QueryBuilder()
                .setFilter(filter)
                .setAfter(after)
                .setTimeout(timeout)
                .setAscendingWithLongPoll()
                .execute(client)
                .list
                .listIterator();
      }

      lastTx = txIter.next();
      return lastTx;
    }

    /**
     * Retrieves the next transaction matching the feed's filter criteria.