mergeAll
Merge multiple sources.
Signature¶
Description¶
Merge multiple sources. Picks elements randomly if all sources has elements ready.
Example¶
sourceval sourceA = Source(1 to 3)
val sourceB = Source(4 to 6)
val sourceC = Source(7 to 10)
sourceA.mergeAll(List(sourceB, sourceC), eagerComplete = false).runForeach(println)
// merging is not deterministic, can for example print 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
sourceSource<Integer, NotUsed> sourceA = Source.from(Arrays.asList(1, 2, 3));
Source<Integer, NotUsed> sourceB = Source.from(Arrays.asList(4, 5, 6));
Source<Integer, NotUsed> sourceC = Source.from(Arrays.asList(7, 8, 9, 10));
sourceA
.mergeAll(Arrays.asList(sourceB, sourceC), false)
.runForeach(System.out::println, system);
// merging is not deterministic, can for example print 1, 2, 3, 4, 5, 6, 7, 8, 9, 10
Reactive Streams semantics¶
emits when one of the inputs has an element available
backpressures when downstream backpressures
completes when all upstreams complete (This behavior is changeable to completing when any upstream completes by setting eagerComplete=true
.)
1.1.3