BatchBlock<T> Class

Definition

Provides a dataflow block that batches inputs into arrays.

public sealed class BatchBlock<T> : System.Threading.Tasks.Dataflow.IPropagatorBlock<T,T[]>, System.Threading.Tasks.Dataflow.IReceivableSourceBlock<T[]>, System.Threading.Tasks.Dataflow.ISourceBlock<T[]>, System.Threading.Tasks.Dataflow.ITargetBlock<T>

Type Parameters

T

Specifies the type of data put into batches.

Inheritance
BatchBlock<T>
Implements

Remarks

Note

The TPL Dataflow Library (the System.Threading.Tasks.Dataflow namespace) is not distributed with .NET. To install the System.Threading.Tasks.Dataflow namespace in Visual Studio, open your project, choose Manage NuGet Packages from the Project menu, and search online for the System.Threading.Tasks.Dataflow package. Alternatively, to install it using the .NET Core CLI, run dotnet add package System.Threading.Tasks.Dataflow.

Constructors

BatchBlock<T>(Int32, GroupingDataflowBlockOptions)

Initializes a new BatchBlock<T> with the specified batch size, declining option, and block options.

BatchBlock<T>(Int32)

Initializes a new BatchBlock<T> with the specified batch size.

Properties

BatchSize

Gets the size of the batches generated by this BatchBlock<T>.

Completion

Gets a Task that represents the asynchronous operation and completion of the dataflow block.

OutputCount

Gets the number of output items available to be received from this block.

Methods

Complete()

Signals to the IDataflowBlock that it should not accept nor produce any more messages nor consume any more postponed messages.

Equals(Object)

Determines whether the specified object is equal to the current object.

(Inherited from Object)
GetHashCode()

Serves as the default hash function.

(Inherited from Object)
GetType()

Gets the Type of the current instance.

(Inherited from Object)
LinkTo(ITargetBlock<T[]>, DataflowLinkOptions)

Links the ISourceBlock<TOutput> to the specified ITargetBlock<TInput> .

MemberwiseClone()

Creates a shallow copy of the current Object.

(Inherited from Object)
ToString()

Returns a string that represents the formatted name of this IDataflowBlock instance.

TriggerBatch()

Triggers the BatchBlock<T> to initiate a batching operation even if the number of currently queued or postponed items is less than the BatchSize.

TryReceive(Predicate<T[]>, T[])

Attempts to synchronously receive an available output item from the IReceivableSourceBlock<TOutput>.

TryReceiveAll(IList<T[]>)

Attempts to synchronously receive all available items from the IReceivableSourceBlock<TOutput>.

Explicit Interface Implementations

Extension Methods

AsObservable<TOutput>(ISourceBlock<TOutput>)

Creates a new IObservable<T> abstraction over the ISourceBlock<TOutput>.

AsObserver<TInput>(ITargetBlock<TInput>)

Creates a new IObserver<T> abstraction over the ITargetBlock<TInput>.

LinkTo<TOutput>(ISourceBlock<TOutput>, ITargetBlock<TOutput>, Predicate<TOutput>)

Links the ISourceBlock<TOutput> to the specified ITargetBlock<TInput> using the specified filter.

LinkTo<TOutput>(ISourceBlock<TOutput>, ITargetBlock<TOutput>, DataflowLinkOptions, Predicate<TOutput>)

Links the ISourceBlock<TOutput> to the specified ITargetBlock<TInput> using the specified filter.

LinkTo<TOutput>(ISourceBlock<TOutput>, ITargetBlock<TOutput>)

Links the ISourceBlock<TOutput> to the specified ITargetBlock<TInput>.

OutputAvailableAsync<TOutput>(ISourceBlock<TOutput>, CancellationToken)

Provides a Task<TResult> that asynchronously monitors the source for available output.

OutputAvailableAsync<TOutput>(ISourceBlock<TOutput>)

Provides a Task<TResult> that asynchronously monitors the source for available output.

Post<TInput>(ITargetBlock<TInput>, TInput)

Posts an item to the ITargetBlock<TInput>.

Receive<TOutput>(ISourceBlock<TOutput>, CancellationToken)

Synchronously receives a value from a specified source and provides a token to cancel the operation.

Receive<TOutput>(ISourceBlock<TOutput>, TimeSpan, CancellationToken)

Synchronously receives a value from a specified source, providing a token to cancel the operation and observing an optional time-out interval.

Receive<TOutput>(ISourceBlock<TOutput>, TimeSpan)

Synchronously receives a value from a specified source, observing an optional time-out period.

Receive<TOutput>(ISourceBlock<TOutput>)

Synchronously receives a value from a specified source.

ReceiveAllAsync<TOutput>(IReceivableSourceBlock<TOutput>, CancellationToken)

Creates an IAsyncEnumerable<T> that enables receiving all of the data from the source.

ReceiveAsync<TOutput>(ISourceBlock<TOutput>, CancellationToken)

Asynchronously receives a value from a specified source and provides a token to cancel the operation.

ReceiveAsync<TOutput>(ISourceBlock<TOutput>, TimeSpan, CancellationToken)

Asynchronously receives a value from a specified source, providing a token to cancel the operation and observing an optional time-out interval.

ReceiveAsync<TOutput>(ISourceBlock<TOutput>, TimeSpan)

Asynchronously receives a value from a specified source, observing an optional time-out period.

ReceiveAsync<TOutput>(ISourceBlock<TOutput>)

Asynchronously receives a value from a specified source.

SendAsync<TInput>(ITargetBlock<TInput>, TInput, CancellationToken)

Asynchronously offers a message to the target message block, allowing for postponement.

SendAsync<TInput>(ITargetBlock<TInput>, TInput)

Asynchronously offers a message to the target message block, allowing for postponement.

TryReceive<TOutput>(IReceivableSourceBlock<TOutput>, TOutput)

Attempts to synchronously receive an item from the ISourceBlock<TOutput>.

Applies to

Product Versions
.NET Core 1.0, Core 1.1, Core 2.0, Core 2.1, Core 2.2, Core 3.0, Core 3.1, 5, 6, 7, 8 (package-provided), 8, 9 (package-provided), 9
.NET Framework 4.7 (package-provided), 4.7.1 (package-provided), 4.7.2 (package-provided), 4.8 (package-provided)
.NET Standard 2.0 (package-provided), 2.1 (package-provided)
UWP 10.0