Examples of co.cask.tephra.TransactionExecutor.execute()

co.cask.tephra.TransactionExecutor.execute()

Execute a function under transactional semantics. A transaction is started and all datasets are initialized with the transaction. Then the passed function is executed, the transaction is committed, and the function return value is returned as the return value of this method. If any exception is caught, the transaction is aborted and the original exception is rethrown, wrapped into a TransactionFailureException. If the transaction fails due to a write conflict, a TransactionConflictException is thrown. @param function the function to execute @param input the input parameter for the function @param < I> the input type of the function @param < O> the result type of the function @return the function's return value @throws TransactionConflictException if there is a write conflict with another transaction. @throws TransactionFailureException if any exception is caught, be it from the function or from the datasets.

      }


      @Override
      public void flush() throws IOException {
        try {
          txExecutor.execute(new TransactionExecutor.Subroutine() {
            @Override
            public void apply() throws Exception {
              for (StreamEvent event : events) {
                producer.enqueue(new QueueEntry(STREAM_EVENT_CODEC.encodePayload(event)));
              }

      }
    }


    TransactionExecutor txExecutor = new DefaultTransactionExecutor(txClient, txAwares);


    RETURN_TYPE result = txExecutor.execute(new Callable<RETURN_TYPE>() {
      @Override
      public RETURN_TYPE call() throws Exception {
        return tx.call(context);
      }
    });

      }
    });


    TransactionExecutor executor = txFactory.createExecutor(txAwares);
    try {
      return executor.execute(func, it);
    } finally {
      for (V t : it) {
        if (t instanceof Closeable) {
          ((Closeable) t).close();
        }

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.