Package io.reactivex.rxjava3.operators
Interface ScalarSupplier<T>
- Type Parameters:
T
- the scalar value type held by the implementing reactive type
- All Superinterfaces:
Supplier<T>
- All Known Implementing Classes:
FlowableEmpty
,FlowableJust
,MaybeEmpty
,MaybeJust
,ObservableEmpty
,ObservableJust
- Functional Interface:
- This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.
A marker interface indicating that a scalar, constant value
is held by the implementing reactive type which can be
safely extracted during assembly time can be used for
optimization.
Implementors of get()
should not throw any exception.
Design note: the interface extends Supplier
because if a scalar
is safe to extract during assembly time, it is also safe to extract at
subscription time or later. This allows optimizations to deal with such
single-element sources uniformly.
- Since:
- 3.1.1
-
Method Summary