Collectors.Mapping(IFunction, ICollector) Method

Definition

Namespace:

Java.Util.Streams

Assembly:

Mono.Android.dll

Adapts a Collector accepting elements of type U to one accepting elements of type T by applying a mapping function to each input element before accumulation.

[Android.Runtime.Register("mapping", "(Ljava/util/function/Function;Ljava/util/stream/Collector;)Ljava/util/stream/Collector;", "", ApiSince=24)]
[Java.Interop.JavaTypeParameters(new System.String[] { "T", "U", "A", "R" })]
public static Java.Util.Streams.ICollector? Mapping (Java.Util.Functions.IFunction? mapper, Java.Util.Streams.ICollector? downstream);

[<Android.Runtime.Register("mapping", "(Ljava/util/function/Function;Ljava/util/stream/Collector;)Ljava/util/stream/Collector;", "", ApiSince=24)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "T", "U", "A", "R" })>]
static member Mapping : Java.Util.Functions.IFunction * Java.Util.Streams.ICollector -> Java.Util.Streams.ICollector

Parameters

mapper

IFunction

a function to be applied to the input elements

downstream

ICollector

a collector which will accept mapped values

Returns

ICollector

a collector which applies the mapping function to the input elements and provides the mapped results to the downstream collector

Attributes

RegisterAttribute JavaTypeParametersAttribute

Remarks

Adapts a Collector accepting elements of type U to one accepting elements of type T by applying a mapping function to each input element before accumulation.

Java documentation for java.util.stream.Collectors.mapping(java.util.function.Function<? super T, ? extends U>, java.util.stream.Collector<? super U, A, R>).

Portions of this page are modifications based on work created and shared by the Android Open Source Project and used according to terms described in the Creative Commons 2.5 Attribution License.