845 B
845 B
lazySource
Defers creation and materialization of a Source until there is demand.
@refSource operators
@@@div { .group-scala }
Signature
@@signature Source.scala { #lazySource }
@@@
Description
Defers creation and materialization of a Source until there is demand, then emits the elements from the source
downstream just like if it had been created up front.
See also @ref:lazyFutureSource.
Note that asynchronous boundaries (and other operators) in the stream may do pre-fetching which counter acts the laziness and will trigger the factory immediately.
Reactive Streams semantics
@@@div { .callout }
emits depends on the wrapped Source
completes depends on the wrapped Source
@@@