io.axoniq.axondb.client.axon

Class EventBuffer

java.lang.Object

io.axoniq.axondb.client.axon.EventBuffer

All Implemented Interfaces:

AutoCloseable, org.axonframework.eventsourcing.eventstore.TrackingEventStream, org.axonframework.messaging.MessageStream<org.axonframework.eventhandling.TrackedEventMessage<?>>

public class EventBuffer
extends Object
implements org.axonframework.eventsourcing.eventstore.TrackingEventStream

Client-side buffer of messages received from the server. Once consumed from this buffer, the client is notified of a permit being consumed, potentially triggering a permit refresh, if flow control is enabled.

This class is intended for internal use. Be cautious.

Author:

Marc Gathier, Allard Buijze

Constructor Summary

Constructors

Modifier	Constructor and Description
	EventBuffer(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain, org.axonframework.serialization.Serializer serializer, int heartbeatInterval) Initializes an Event Buffer, passing messages through given upcasterChain and deserializing events using given serializer.
protected	EventBuffer(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain, org.axonframework.serialization.Serializer serializer, int heartbeatInterval, BlockingQueue<org.axonframework.eventsourcing.eventstore.TrackedEventData<byte[]>> events)

Method Summary

Modifier and Type	Method and Description
void	close()
void	fail(RuntimeException e)
boolean	hasNextAvailable(int timeout, TimeUnit timeUnit)
org.axonframework.eventhandling.TrackedEventMessage<?>	nextAvailable()
Optional<org.axonframework.eventhandling.TrackedEventMessage<?>>	peek()
boolean	push(EventWithToken event)
void	registerCloseListener(Consumer<EventBuffer> closeCallback) Registers the callback to invoke when the reader wishes to close the stream.
void	registerConsumeListener(Consumer<Integer> consumeListener) Registers the callback to invoke when a raw input message was consumed from the buffer.
void	touch()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.axonframework.messaging.MessageStream

asStream, hasNextAvailable

Constructor Detail

EventBuffer

public EventBuffer(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain,
                   org.axonframework.serialization.Serializer serializer,
                   int heartbeatInterval)

Initializes an Event Buffer, passing messages through given upcasterChain and deserializing events using given serializer.

Parameters:

upcasterChain - The upcasterChain to translate serialized representations before deserializing

serializer - The serializer capable of deserializing incoming messages

heartbeatInterval - The interval at which heartbeat messages are excpected to arrive, when no events are being streamed.

EventBuffer

protected EventBuffer(org.axonframework.serialization.upcasting.event.EventUpcaster upcasterChain,
                      org.axonframework.serialization.Serializer serializer,
                      int heartbeatInterval,
                      BlockingQueue<org.axonframework.eventsourcing.eventstore.TrackedEventData<byte[]>> events)

Method Detail

registerCloseListener

public void registerCloseListener(Consumer<EventBuffer> closeCallback)

Registers the callback to invoke when the reader wishes to close the stream.

Parameters:

closeCallback - The callback to invoke when the reader wishes to close the stream

registerConsumeListener

public void registerConsumeListener(Consumer<Integer> consumeListener)

Registers the callback to invoke when a raw input message was consumed from the buffer.

Parameters:

consumeListener - the callback to invoke when a raw input message was consumed from the buffer

peek

public Optional<org.axonframework.eventhandling.TrackedEventMessage<?>> peek()

Specified by:

peek in interface org.axonframework.messaging.MessageStream<org.axonframework.eventhandling.TrackedEventMessage<?>>

hasNextAvailable

public boolean hasNextAvailable(int timeout,
                                TimeUnit timeUnit)

Specified by:

hasNextAvailable in interface org.axonframework.messaging.MessageStream<org.axonframework.eventhandling.TrackedEventMessage<?>>

nextAvailable

public org.axonframework.eventhandling.TrackedEventMessage<?> nextAvailable()

Specified by:

nextAvailable in interface org.axonframework.messaging.MessageStream<org.axonframework.eventhandling.TrackedEventMessage<?>>

close

public void close()

Specified by:

close in interface AutoCloseable

Specified by:

close in interface org.axonframework.messaging.MessageStream<org.axonframework.eventhandling.TrackedEventMessage<?>>

push

public boolean push(EventWithToken event)

fail

public void fail(RuntimeException e)

touch

public void touch()