ConcurrentHashMap.ReduceKeys Method

Definition

Namespace:

Java.Util.Concurrent

Assembly:

Mono.Android.dll

Overloads

ReduceKeys(Int64, IBiFunction)	Returns the result of accumulating all keys using the given reducer to combine values, or null if none.
ReduceKeys(Int64, IFunction, IBiFunction)	Returns the result of accumulating the given transformation of all keys using the given reducer to combine values, or null if none.

ReduceKeys(Int64, IBiFunction)

Returns the result of accumulating all keys using the given reducer to combine values, or null if none.

[Android.Runtime.Register("reduceKeys", "(JLjava/util/function/BiFunction;)Ljava/lang/Object;", "GetReduceKeys_JLjava_util_function_BiFunction_Handler", ApiSince=24)]
public virtual Java.Lang.Object? ReduceKeys (long parallelismThreshold, Java.Util.Functions.IBiFunction reducer);

[<Android.Runtime.Register("reduceKeys", "(JLjava/util/function/BiFunction;)Ljava/lang/Object;", "GetReduceKeys_JLjava_util_function_BiFunction_Handler", ApiSince=24)>]
abstract member ReduceKeys : int64 * Java.Util.Functions.IBiFunction -> Java.Lang.Object
override this.ReduceKeys : int64 * Java.Util.Functions.IBiFunction -> Java.Lang.Object

Parameters

parallelismThreshold

Int64

the (estimated) number of elements needed for this operation to be executed in parallel

reducer

IBiFunction

a commutative associative combining function

Returns

Object

the result of accumulating all keys using the given reducer to combine values, or null if none

Attributes

RegisterAttribute

Remarks

Returns the result of accumulating all keys using the given reducer to combine values, or null if none.

Added in 1.8.

Java documentation for java.util.concurrent.ConcurrentHashMap.reduceKeys(long, java.util.function.BiFunction<? super K, ? super K, ? extends K>).

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.

ReduceKeys(Int64, IFunction, IBiFunction)

Returns the result of accumulating the given transformation of all keys using the given reducer to combine values, or null if none.

[Android.Runtime.Register("reduceKeys", "(JLjava/util/function/Function;Ljava/util/function/BiFunction;)Ljava/lang/Object;", "GetReduceKeys_JLjava_util_function_Function_Ljava_util_function_BiFunction_Handler", ApiSince=24)]
[Java.Interop.JavaTypeParameters(new System.String[] { "U" })]
public virtual Java.Lang.Object? ReduceKeys (long parallelismThreshold, Java.Util.Functions.IFunction transformer, Java.Util.Functions.IBiFunction reducer);

[<Android.Runtime.Register("reduceKeys", "(JLjava/util/function/Function;Ljava/util/function/BiFunction;)Ljava/lang/Object;", "GetReduceKeys_JLjava_util_function_Function_Ljava_util_function_BiFunction_Handler", ApiSince=24)>]
[<Java.Interop.JavaTypeParameters(new System.String[] { "U" })>]
abstract member ReduceKeys : int64 * Java.Util.Functions.IFunction * Java.Util.Functions.IBiFunction -> Java.Lang.Object
override this.ReduceKeys : int64 * Java.Util.Functions.IFunction * Java.Util.Functions.IBiFunction -> Java.Lang.Object

Parameters

parallelismThreshold

Int64

the (estimated) number of elements needed for this operation to be executed in parallel

transformer

IFunction

a function returning the transformation for an element, or null if there is no transformation (in which case it is not combined)

reducer

IBiFunction

a commutative associative combining function

Returns

Object

the result of accumulating the given transformation of all keys

Attributes

RegisterAttribute JavaTypeParametersAttribute

Remarks

Returns the result of accumulating the given transformation of all keys using the given reducer to combine values, or null if none.

Added in 1.8.

Java documentation for java.util.concurrent.ConcurrentHashMap.reduceKeys(long, java.util.function.Function<? super K, ? extends U>, java.util.function.BiFunction<? super U, ? super U, ? extends U>).

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.