Module io.axoniq.connector.axonserver

Package io.axoniq.axonserver.connector.event.transformation.impl

Class EventTransformationChannelImpl

java.lang.Object

io.axoniq.axonserver.connector.impl.AbstractAxonServerChannel<Void>

io.axoniq.axonserver.connector.event.transformation.impl.EventTransformationChannelImpl

All Implemented Interfaces:

EventTransformationChannel

public class EventTransformationChannelImpl
extends AbstractAxonServerChannel<Void>
implements EventTransformationChannel

Implementation of the EventTransformationChannel that uses the EventTransformationService to interact with Axon Server

Since:

2023.1.0

Author:

Sara Pellegrini

Constructor Summary

Constructors

Constructor	Description
EventTransformationChannelImpl(ClientIdentification clientIdentification, ScheduledExecutorService executor, AxonServerManagedChannel axonServerManagedChannel)	Constructs an instance based on a GrpcEventTransformationService.

Method Summary

Modifier and Type	Method	Description
CompletableFuture<ActiveTransformation>	activeTransformation()	Returns the completable future of the active transformation.
void	connect()	Connect this channel with AxonServer.
void	disconnect()	Disconnect this channel from AxonServer.
boolean	isReady()	Validate whether this channel has all required streams connected with AxonServer.
CompletableFuture<ActiveTransformation>	newTransformation(String description)	Starts a new transformation to append events change actions.
void	reconnect()	Reconnect this channel with AxonServer.
CompletableFuture<Void>	startCompacting()	Starts the compaction of the event store.
CompletableFuture<Iterable<EventTransformation>>	transformations()	Returns the completable future of the all transformations.

Methods inherited from class io.axoniq.axonserver.connector.impl.AbstractAxonServerChannel

processAck, scheduleImmediateReconnect, scheduleReconnect, sendInstruction

Methods inherited from class java.lang.Object

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

Methods inherited from interface io.axoniq.axonserver.connector.event.transformation.EventTransformationChannel

transform

Constructor Detail

EventTransformationChannelImpl

public EventTransformationChannelImpl(ClientIdentification clientIdentification,
                                      ScheduledExecutorService executor,
                                      AxonServerManagedChannel axonServerManagedChannel)

Constructs an instance based on a GrpcEventTransformationService.

Parameters:

clientIdentification - the identification of the client

executor - a ScheduledExecutorService used to schedule reconnections

axonServerManagedChannel - the AxonServerManagedChannel used to connect to AxonServer

Method Detail

transformations

public CompletableFuture<Iterable<EventTransformation>> transformations()

Description copied from interface: EventTransformationChannel

Returns the completable future of the all transformations.

Specified by:

transformations in interface EventTransformationChannel

Returns:

the completable future of the all transformations.

activeTransformation

public CompletableFuture<ActiveTransformation> activeTransformation()

Description copied from interface: EventTransformationChannel

Returns the completable future of the active transformation.

Specified by:

activeTransformation in interface EventTransformationChannel

Returns:

The completable future of the active transformation.

newTransformation

public CompletableFuture<ActiveTransformation> newTransformation(String description)

Description copied from interface: EventTransformationChannel

Starts a new transformation to append events change actions. It

Specified by:

newTransformation in interface EventTransformationChannel

Parameters:

description - the description of the transformation to start.

Returns:

The completable future of the active transformation reference onto which to register events transformation actions.

startCompacting

public CompletableFuture<Void> startCompacting()

Description copied from interface: EventTransformationChannel

Starts the compaction of the event store. The invocation of this method requests Axon Server to permanently delete all the obsoleted version of the event store, in order to save storage space.

Specified by:

startCompacting in interface EventTransformationChannel

Returns:

a CompletableFuture that completes when the compaction request has been received by Axon Server.

connect

public void connect()

Description copied from class: AbstractAxonServerChannel

Connect this channel with AxonServer.

Specified by:

connect in class AbstractAxonServerChannel<Void>

reconnect

public void reconnect()

Description copied from class: AbstractAxonServerChannel

Reconnect this channel with AxonServer.

Specified by:

reconnect in class AbstractAxonServerChannel<Void>

disconnect

public void disconnect()

Description copied from class: AbstractAxonServerChannel

Disconnect this channel from AxonServer.

Specified by:

disconnect in class AbstractAxonServerChannel<Void>

isReady

public boolean isReady()

Description copied from class: AbstractAxonServerChannel

Validate whether this channel has all required streams connected with AxonServer. If the state of the channel does not require any active streams, it is considered ready and will return true.

Specified by:

isReady in class AbstractAxonServerChannel<Void>

Returns:

true if this channel is connected with AxonServer or does not require any active connections, false otherwise