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Veaktor

Use Project Reactor and Vaadin together

Veactor is a set of helpers to use Project Reactor and Vaadin together.

The main functionality is focused on updating parts of a Vaadin UI when new elements are published to a Flux or Mono. This is done using an appropriate subscribe method in the Veactor class. Each of those methods requires a component instance that is used to control the life cycle of the subscription - the subscription is started when the component is attached (happens immediately if it's already attached when subscribe is called) and the subscription is closed when the component is detached again.

@Push
@Route("hello")
public class HelloWorldView extends VerticalLayout {
  public HelloWorldView() {
    Flux<Long> flux = Flux.interval(Duration.ofSeconds(1)).take(10);

    Span message = new Span("Waiting for updates...");

    Veactor.subscribe(this, flux, value -> message.setText("Received value " + value));

    add(message);
  }
}

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