39 lines
1 KiB
Java
39 lines
1 KiB
Java
/*
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* Copyright (C) 2015-2020 Lightbend Inc. <https://www.lightbend.com>
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*/
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package jdocs.stream;
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import java.util.stream.Stream;
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import akka.NotUsed;
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import akka.japi.Pair;
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import akka.stream.javadsl.*;
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// #asPublisher-import
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import static akka.stream.javadsl.AsPublisher.*;
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// #asPublisher-import
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public class MigrationsJava {
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public static void main(String[] args) {
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// #expand-continually
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Flow.of(Integer.class).expand(in -> Stream.iterate(in, i -> i).iterator());
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// #expand-continually
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// #expand-state
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Flow.of(Integer.class)
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.expand(
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in ->
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Stream.iterate(new Pair<>(in, 0), p -> new Pair<>(in, p.second() + 1)).iterator());
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// #expand-state
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// #asPublisher
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Sink.asPublisher(WITH_FANOUT); // instead of Sink.asPublisher(true)
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Sink.asPublisher(WITHOUT_FANOUT); // instead of Sink.asPublisher(false)
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// #asPublisher
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// #async
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Flow<Integer, Integer, NotUsed> flow = Flow.of(Integer.class).map(n -> n + 1);
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Source.range(1, 10).via(flow.async());
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// #async
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}
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}
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