org.apache.pulsar.client.impl.transaction

Class TransactionImpl

java.lang.Object

org.apache.pulsar.client.impl.transaction.TransactionImpl

All Implemented Interfaces:

io.netty.util.TimerTask, Transaction

public class TransactionImpl
extends Object
implements Transaction, io.netty.util.TimerTask

The default implementation of Transaction.

All the error handling and retry logic are handled by this class. The original pulsar client doesn't handle any transaction logic. It is only responsible for sending the messages and acknowledgements carrying the transaction id and retrying on failures. This decouples the transactional operations from non-transactional operations as much as possible.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	TransactionImpl.State

Method Summary

Modifier and Type	Method and Description
CompletableFuture<Void>	abort()
<T> boolean	checkIfOpen(CompletableFuture<T> completableFuture)
CompletableFuture<Void>	commit()
TxnID	getTxnID()
CompletableFuture<Void>	registerAckedTopic(String topic, String subscription)
void	registerAckOp(CompletableFuture<Void> ackFuture)
void	registerCumulativeAckConsumer(ConsumerImpl<?> consumer)
CompletableFuture<Void>	registerProducedTopic(String topic)
void	registerSendOp(CompletableFuture<MessageId> sendFuture)
void	run(io.netty.util.Timeout timeout)

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Method Detail

run

public void run(io.netty.util.Timeout timeout)
         throws Exception

Specified by:

run in interface io.netty.util.TimerTask

Throws:

Exception

registerProducedTopic

public CompletableFuture<Void> registerProducedTopic(String topic)

registerSendOp

public void registerSendOp(CompletableFuture<MessageId> sendFuture)

registerAckedTopic

public CompletableFuture<Void> registerAckedTopic(String topic,
                                                  String subscription)

registerAckOp

public void registerAckOp(CompletableFuture<Void> ackFuture)

registerCumulativeAckConsumer

public void registerCumulativeAckConsumer(ConsumerImpl<?> consumer)

commit

public CompletableFuture<Void> commit()

Specified by:

commit in interface Transaction

abort

public CompletableFuture<Void> abort()

Specified by:

abort in interface Transaction

getTxnID

public TxnID getTxnID()

Specified by:

getTxnID in interface Transaction

checkIfOpen

public <T> boolean checkIfOpen(CompletableFuture<T> completableFuture)