Artem Bilan e6e9f45164 Use Mono.create instead of Mono.fromCallable ...

It is better to poll message from `QueueChannel`
when ever a reactive request happens.
The `Mono.fromCallable()` operator does poll on subscription, not request
and caches the value.
However we may lose such a value in between.

* Use `Mono.create()` with its `monoSink.onRequest()` callback in the
`adaptPollableChannelToPublisher()` implementation to defer `inputChannel.receive()`
until an on demand request downstream

2020-03-02 16:57:29 -05:00

..

src

Use Mono.create instead of Mono.fromCallable

2020-03-02 16:57:29 -05:00