[RxJava] never

never

아무것도 통지하지 않은 Flowable/Observable을 생성하는 연산자로, 완료도 통지하지 않는다.

empty는 완료를 통지하지만 never는 아무것도 통지하지 않는다.

[소스코드]

public class Main {
    public static void main(String[] args) throws Exception {
        never();
    }

    static void never() throws Exception {
        Flowable.never().subscribe(new PrintSubscriber<>());
    }
}

[Subscribe 코드]

import io.reactivex.subscribers.DisposableSubscriber;

public class PrintSubscriber<T> extends DisposableSubscriber<T> {

    private String label;

    public PrintSubscriber() {
    }

    public PrintSubscriber(String label) {
        this.label = label;
    }
    @Override
    public void onNext(T data) {
        String threadName = Thread.currentThread().getName();
        String resultMsg = label == null ? (threadName + " : " + data) : (threadName + " : "+ label + " : "+ data);
        System.out.println(resultMsg);
    }

    @Override
    public void onError(Throwable throwable) {
        String threadName = Thread.currentThread().getName();
        String resultMsg = label == null ? (threadName + " : Exception=" + throwable) : (threadName + " : "+ label + " : "+ throwable);
        System.out.println(resultMsg);
    }

    @Override
    public void onComplete() {
        String threadName = Thread.currentThread().getName();
        String resultMsg = label == null ? (threadName + " : Complete") : (threadName + " : "+ label + " : Complete");
        System.out.println(resultMsg);
    }
}

[결과]

없음.