getFacility

@Nullable
fun <F : Facility?> getFacility(@NonNull facilityClass: Class<F>): F
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Retrieves a facility.

Return

requested facility, or null if it's not present

Parameters

facilityClass

class of the facility

<F>

type of the facility class

@NonNull
fun <F : Facility?> getFacility(@NonNull facilityClass: Class<F>, @NonNull observer: Ref.Observer<F>): Ref<F>
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Retrieves a facility and registers an observer notified each time it changes.

Return

reference to the requested facility

Parameters

facilityClass

class of the facility

observer

observer to notify when the facility changes

<F>

type of the facility class