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Types of subscribers

Pragya Keshap answered on February 20, 2023 Popularity 1/10 Helpfulness 1/10

answer Types of subscribers

Types of subscribers

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The Flux and Mono classes both allow Java 8 lambda expressions as a subscriber. They also support various overloaded versions of the subscribe() method, as per the following code.

public class ReactorWithSubscriberWays {

  public static void main(String[] args) {
    List<String> monthList = Arrays.asList(
            "January","February","March","April","May");

    Flux<String> months = Flux.fromIterable(monthList);
/* 1) No events is consumed. */
    months.subscribe();
/* 2) Only value event is consumed */
    months.subscribe(month->System.out.println("->"+month));

/* 3) Value and Error (total 2) events are handled */
    months.subscribe(month->System.out.println("-->"+month),
              e->e.printStackTrace());

/* 4) Value, Error and Completion (total 3) events are subscribed */
    months.subscribe(month->System.out.println("--->"+month),
                    e->e.printStackTrace(),
            ()->System.out.println("Finished at THIRD PLACE.. !!"));

/* 5) Value, Error, Completion and Subscription (total 4) events are subscribed */
    months.subscribe(month->System.out.println("---->"+month),
                                       e->e.printStackTrace(),
      ()->System.out.println("Finished at FOURTH PLACE ..!!"),
             s -> {System.out.println("Subscribed :");
                   s.request(5L);});
  }
}

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java types

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Contributed on Feb 20 2023

Pragya Keshap

0 Answers Avg Quality 2/10

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