WriteBus

Note: this source will be removed when the owner you provide says so. To remove this source manually, call .kill() on the resulting Subscription.

Behaves similar to contramap, but gives you a WriteBus, not just an Observer

Behaves similar to filter, but gives you a WriteBus, not just an Observer

Note: must not throw!

Note: must not throw!

Note: must not throw!

Like contramap but with collect semantics: not calling the original observer when pf is not defined

Like contramap, but original observer only fires if project returns Some(value)

So, similar to contracollect but optimized for APIs like NonEmptyList.fromList that return an Option.

Creates another Observer such that calling its onNext will call this observer's onNext with the value processed by the project function.

This is useful when you need to pass down an Observer[A] to a child component which should not know anything about the type A, but both child and parent know about type B, and the parent knows how to translate B into A.

Available only on Observers of Option, this is a shortcut for contramapB

This is the method that subclasses override to preserve the user's ability to set custom display names.

Creates another Observer such that calling it calls the original observer after the specified delay.

Note: unlike Observable operators, Observer operators are not ownership-aware, so this can fire the observer even after the subscription that bound this observer to the observable has been killed. So in Laminar for example, it's possible for such a delayed observer to fire even after the element that owns this subscription was unmounted. Use the Observable delay operator to avoid that.

Of course, whether anything happens if the observer is fired is a separate issue altogether. For example, if the observer is an EventBus writer, firing into it won't do anything if the EventBus stream is stopped.

Creates another Observer such that calling its onNext will call this observer's onNext with the same value, but only if it passes the test.

Set the display name for this instance (observable or observer).

• This method modifies the instance and returns this. It does not create a new instance.
• New name you set will override the previous name, if any. This might change in the future. For the sake of sanity, don't call this more than once for the same instance.
• If display name is set, toString will output it instead of the standard type@hashcode string

Override defaultDisplayName instead of this, if you need to.