Package io.pravega.client.stream.impl

Class TransactionalEventStreamWriterImpl<Type>

java.lang.Object

io.pravega.client.stream.impl.TransactionalEventStreamWriterImpl<Type>

Type Parameters:

Type - The type of event that is sent

All Implemented Interfaces:

TransactionalEventStreamWriter<Type>, java.lang.AutoCloseable

public class TransactionalEventStreamWriterImpl<Type>
extends java.lang.Object
implements TransactionalEventStreamWriter<Type>

This class creates transactions, and manages their lifecycle.

Method Summary

Modifier and Type	Method	Description
Transaction<Type>	beginTxn()	Start a new transaction on this stream.
void	close()	Closes the writer.
EventWriterConfig	getConfig()	Returns the configuration that this writer was created with.
Transaction<Type>	getTxn(java.util.UUID txId)	Returns a previously created transaction.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Method Detail

beginTxn

public Transaction<Type> beginTxn()

Description copied from interface: TransactionalEventStreamWriter

Start a new transaction on this stream. This allows events written to the transaction be written an committed atomically. Note that transactions can only be open for EventWriterConfig.transactionTimeoutTime.

Specified by:

beginTxn in interface TransactionalEventStreamWriter<Type>

Returns:

A transaction through which multiple events can be written atomically.

getTxn

public Transaction<Type> getTxn(java.util.UUID txId)

Description copied from interface: TransactionalEventStreamWriter

Returns a previously created transaction.

Specified by:

getTxn in interface TransactionalEventStreamWriter<Type>

Parameters:

txId - The result retained from calling Transaction.getTxnId()

Returns:

Transaction object with given UUID

close

public void close()

Description copied from interface: TransactionalEventStreamWriter

Closes the writer. (No further methods may be called)

Specified by:

close in interface java.lang.AutoCloseable

Specified by:

close in interface TransactionalEventStreamWriter<Type>

getConfig

public EventWriterConfig getConfig()

Description copied from interface: TransactionalEventStreamWriter

Returns the configuration that this writer was created with.

Specified by:

getConfig in interface TransactionalEventStreamWriter<Type>

Returns:

Writer configuration

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object