com.aol.cyclops2.types.recoverable

Interface OnEmptySwitch<T,R>

Type Parameters:

T - Data type of element(s) stored in this container

R - Data type of element(s) stored in the container toNested be used if this container is empty

All Known Subinterfaces:

BagX<T>, DequeX<T>, FutureStream<U>, LinkedListX<T>, ListX<T>, MapX<K,V>, OrderedSetX<T>, PersistentMapX<K,V>, PersistentQueueX<T>, PersistentSetX<T>, QueueX<T>, ReactiveSeq<T>, SetX<T>, SortedSetX<T>, VectorX<T>

All Known Implementing Classes:

ExtensiblePMapX, LazyDequeX, LazyLinkedListX, LazyListX, LazyPBagX, LazyPOrderedSetX, LazyPQueueX, LazyPSetX, LazyPVectorX, LazyQueueX, LazySetX, LazySortedSetX, MapXImpl, PMapXImpl

public interface OnEmptySwitch<T,R>

Represents a container that may be empty for which we can switch a container with another value

Method Summary

Modifier and Type	Method and Description
OnEmptySwitch<T,R>	onEmptySwitch(java.util.function.Supplier<? extends R> supplier) Switch toNested container created by provided Supplier, if current Container empty

Method Detail

onEmptySwitch

OnEmptySwitch<T,R> onEmptySwitch(java.util.function.Supplier<? extends R> supplier)

Switch toNested container created by provided Supplier, if current Container empty

  
     ListX.empty().onEmptySwitch(()->ListX.of(1));
  
 

Parameters:

supplier - toNested create replacement container

Returns:

Either this container or if empty, an alternative returned by the provided supplier