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onBackpressureBuffer

Anjali Sharma answered on January 22, 2023 Popularity 1/10 Helpfulness 1/10

answer onBackpressureBuffer

onBackpressureBuffer

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The onBackPressureBuffer()will take an existing Flowable that is assumed to not have backpressure implemented and then essentially apply BackpressureStrategy

.BUFFER at that point to the downstream.

Since Flowable.interval() cannot be backpressured at the source, putting onBackPressureBuffer() after it will proxy a backpressured queue to the downstream:

public class Launcher {
    public static void main(String[] args) {
        Flowable.interval(1, TimeUnit.MILLISECONDS)
                 .onBackpressureBuffer(10,
                         () -> System.out.println("overflow!"),
                         BackpressureOverflowStrategy.DROP_LATEST)
                 .observeOn(Schedulers.io())
                 .subscribe(i -> {
                     sleep(5);
                     System.out.println(i);
                 });
        sleep(5000);
     }
    public static void sleep(long millis) {
         try {
             Thread.sleep(millis);
         } catch (InterruptedException e) {
             e.printStackTrace();
         }
     }
 }

https://learning.oreilly.com/library/view/learning-rxjava/9781787120426/0d991510-4149-4455-94c8-18b2cc60ec6d.xhtml

Popularity 1/10 Helpfulness 1/10 Language java

Source: Grepper

Tags: java

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Contributed on Jan 22 2023

Anjali Sharma

0 Answers Avg Quality 2/10

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