ServiceBusTransactionContext Class

Package:

com.azure.messaging.servicebus

Maven Artifact:

com.azure:azure-messaging-servicebus:7.17.7

• java.lang.Object
• • com.azure.messaging.servicebus.ServiceBusTransactionContext

public final class ServiceBusTransactionContext

Represents transaction in service. This object just contains transaction id. Transaction management operations like create transaction, rollback, and commit operation need to be done using the sender or receiver clients.

A transaction times out after 2 minutes. The transaction timer starts when the first operation in the transaction starts.

Creating and using a transaction

// This mono creates a transaction and caches the output value, so we can associate operations with the
 // transaction. It does not cache the value if it is an error or completes with no items, effectively retrying
 // the operation.
 Mono<ServiceBusTransactionContext> transactionContext = asyncReceiver.createTransaction()
     .cache(value -> Duration.ofMillis(Long.MAX_VALUE),
         error -> Duration.ZERO,
         () -> Duration.ZERO);

 // Dispose of the disposable to cancel the operation.
 Disposable disposable = transactionContext.flatMap(transaction -> {
     // Process messages and associate operations with the transaction.
     Mono<Void> operations = Mono.when(
         asyncReceiver.receiveDeferredMessage(sequenceNumber).flatMap(message ->
             asyncReceiver.complete(message, new CompleteOptions().setTransactionContext(transaction))),
         asyncReceiver.abandon(receivedMessage, new AbandonOptions().setTransactionContext(transaction)));

     // Finally, either commit or rollback the transaction once all the operations are associated with it.
     return operations.then(asyncReceiver.commitTransaction(transaction));
 }).subscribe(unused -> {
 }, error -> {
     System.err.println("Error occurred processing transaction: " + error);
 }, () -> {
     System.out.println("Completed transaction");
 });

Method Summary

Modifier and Type	Method and Description
ByteBuffer	getTransactionId() Gets the transaction id.

Methods inherited from java.lang.Object

clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Method Details

getTransactionId

public ByteBuffer getTransactionId()

Gets the transaction id.

Returns:

transaction ID