org.apache.pulsar.broker.systopic

Interface SystemTopicClient.Reader

Enclosing interface:

SystemTopicClient

public static interface SystemTopicClient.Reader

Reader for system topic

Method Summary

Modifier and Type	Method and Description
void	close() Close the system topic reader.
CompletableFuture<Void>	closeAsync() Close the reader of the system topic asynchronously.
SystemTopicClient	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<org.apache.pulsar.common.events.PulsarEvent>	readNext() Read event from system topic
CompletableFuture<org.apache.pulsar.client.api.Message<org.apache.pulsar.common.events.PulsarEvent>>	readNextAsync() Async read event from system topic

Method Detail

readNext

org.apache.pulsar.client.api.Message<org.apache.pulsar.common.events.PulsarEvent> readNext()
                                                                                    throws org.apache.pulsar.client.api.PulsarClientException

Read event from system topic

Returns:

pulsar event

Throws:

org.apache.pulsar.client.api.PulsarClientException

readNextAsync

CompletableFuture<org.apache.pulsar.client.api.Message<org.apache.pulsar.common.events.PulsarEvent>> readNextAsync()

Async read event from system topic

Returns:

pulsar event future

hasMoreEvents

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

Check has more events available for the reader.

Returns:

true if has remaining events, otherwise false

Throws:

org.apache.pulsar.client.api.PulsarClientException

hasMoreEventsAsync

CompletableFuture<Boolean> hasMoreEventsAsync()

Check has more events available for the reader asynchronously.

Returns:

true if has remaining events, otherwise false

close

void close()
    throws IOException

Close the system topic reader.

Throws:

IOException

closeAsync

CompletableFuture<Void> closeAsync()

Close the reader of the system topic asynchronously.

getSystemTopic

SystemTopicClient getSystemTopic()

Get the system topic of the reader

Returns:

system topic