DryadLinqQueryable.Fork(T, R1, R2) Method (IQueryable(T), Expression(Func(T, ForkTuple(R1, R2))))

DryadLinqQueryableForkT, R1, R2 Method (IQueryableT, ExpressionFuncT, ForkTupleR1, R2)

DryadLINQ documentation

Compute two output datasets from one input dataset. A specified user-defined function is applied to each input element to produce zero or one element for each output dataset.

Namespace: Microsoft.Research.DryadLinq
Assembly: Microsoft.Research.DryadLinq (in Microsoft.Research.DryadLinq.dll) Version: 0.2.1.0 (0.2.1.0)

Syntax

C++

Copy

public static IMultiQueryable<R1, R2> Fork<T, R1, R2>(
	this IQueryable<T> source,
	Expression<Func<T, ForkTuple<R1, R2>>> mapper
)

<ExtensionAttribute> 
Public Shared Function Fork(Of T, R1, R2) ( 
	source As IQueryable(Of T),
	mapper As Expression(Of Func(Of T, ForkTuple(Of R1, R2)))
) As IMultiQueryable(Of R1, R2)

public:
[ExtensionAttribute]
generic<typename T, typename R1, typename R2>
static IMultiQueryable<R1, R2>^ Fork(
	IQueryable<T>^ source, 
	Expression<Func<T, ForkTuple<R1, R2>>^>^ mapper
)

Parameters

source: Type: System.LinqIQueryableT
The input dataset
mapper: Type: System.Linq.ExpressionsExpressionFuncT, ForkTupleR1, R2
The function applied to each record of the input

Type Parameters

T: The type of records of input dataset
R1: The type of records of first output dataset
R2: The type of records of second output dataset

Return Value

Type: IMultiQueryableR1, R2
An IMultiQueryable for the two output datasets

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type IQueryableT. When you use instance method syntax to call this method, omit the first parameter. For more information, see Extension Methods (Visual Basic) or Extension Methods (C# Programming Guide).

Reference

DryadLinqQueryable Class

Fork Overload

Microsoft.Research.DryadLinq Namespace