Package org.apache.pulsar.broker.systopic

Class TransactionBufferSnapshotBaseSystemTopicClient.TransactionBufferSnapshotReader<T>

java.lang.Object

org.apache.pulsar.broker.systopic.TransactionBufferSnapshotBaseSystemTopicClient.TransactionBufferSnapshotReader<T>

All Implemented Interfaces:

SystemTopicClient.Reader<T>

Enclosing class:

TransactionBufferSnapshotBaseSystemTopicClient<T>

protected static class TransactionBufferSnapshotBaseSystemTopicClient.TransactionBufferSnapshotReader<T>
extends Object
implements SystemTopicClient.Reader<T>

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	TransactionBufferSnapshotReader(org.apache.pulsar.client.api.Reader<T> reader, TransactionBufferSnapshotBaseSystemTopicClient<T> transactionBufferSnapshotBaseSystemTopicClient)

Method Summary

Modifier and Type	Method	Description
void	close()	Close the system topic reader.
CompletableFuture<Void>	closeAsync()	Close the reader of the system topic asynchronously.
SystemTopicClient<T>	getSystemTopic()	Get the system topic of the reader.
boolean	hasMoreEvents()	Check has more events available for the reader.
CompletableFuture<Boolean>	hasMoreEventsAsync()	Check has more events available for the reader asynchronously.
org.apache.pulsar.client.api.Message<T>	readNext()	Read event from system topic.
CompletableFuture<org.apache.pulsar.client.api.Message<T>>	readNextAsync()	Async read event from system topic.

Methods inherited from class java.lang.Object

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

Constructor Details

TransactionBufferSnapshotReader

protected TransactionBufferSnapshotReader(org.apache.pulsar.client.api.Reader<T> reader,
 TransactionBufferSnapshotBaseSystemTopicClient<T> transactionBufferSnapshotBaseSystemTopicClient)

Method Details

readNext

public org.apache.pulsar.client.api.Message<T> readNext()
                                                 throws org.apache.pulsar.client.api.PulsarClientException

Description copied from interface: SystemTopicClient.Reader

Read event from system topic.

Specified by:

readNext in interface SystemTopicClient.Reader<T>

Returns:

pulsar event

Throws:

org.apache.pulsar.client.api.PulsarClientException

readNextAsync

public CompletableFuture<org.apache.pulsar.client.api.Message<T>> readNextAsync()

Description copied from interface: SystemTopicClient.Reader

Async read event from system topic.

Specified by:

readNextAsync in interface SystemTopicClient.Reader<T>

Returns:

pulsar event future

hasMoreEvents

public boolean hasMoreEvents()
                      throws org.apache.pulsar.client.api.PulsarClientException

Description copied from interface: SystemTopicClient.Reader

Check has more events available for the reader.

Specified by:

hasMoreEvents in interface SystemTopicClient.Reader<T>

Returns:

true if has remaining events, otherwise false

Throws:

org.apache.pulsar.client.api.PulsarClientException

hasMoreEventsAsync

public CompletableFuture<Boolean> hasMoreEventsAsync()

Description copied from interface: SystemTopicClient.Reader

Check has more events available for the reader asynchronously.

Specified by:

hasMoreEventsAsync in interface SystemTopicClient.Reader<T>

Returns:

true if has remaining events, otherwise false

close

public void close()
           throws IOException

Description copied from interface: SystemTopicClient.Reader

Close the system topic reader.

Specified by:

close in interface SystemTopicClient.Reader<T>

Throws:

IOException

closeAsync

public CompletableFuture<Void> closeAsync()

Description copied from interface: SystemTopicClient.Reader

Close the reader of the system topic asynchronously.

Specified by:

closeAsync in interface SystemTopicClient.Reader<T>

getSystemTopic

public SystemTopicClient<T> getSystemTopic()

Description copied from interface: SystemTopicClient.Reader

Get the system topic of the reader.

Specified by:

getSystemTopic in interface SystemTopicClient.Reader<T>

Returns:

system topic