Collection(TRecord, TTime).FixedPoint(TKey) Method (Func(LoopContext(TTime), Collection(TRecord, IterationIn(TTime)), Collection(TRecord, IterationIn(TTime))), Expression(Func(TRecord, TKey)), Int32)

CollectionTRecord, TTimeFixedPointTKey Method (FuncLoopContextTTime, CollectionTRecord, IterationInTTime, CollectionTRecord, IterationInTTime, ExpressionFuncTRecord, TKey, Int32)

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[This is preliminary documentation and is subject to change.]

Computes the fixed point of the subquery f applied to this collection.

Namespace: Microsoft.Research.Naiad.Frameworks.DifferentialDataflow
Assembly: Microsoft.Research.Naiad.DifferentialDataflow (in Microsoft.Research.Naiad.DifferentialDataflow.dll) Version: 0.5.0.0 (0.5.0.0)

Syntax

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Collection<TRecord, TTime> FixedPoint<TKey>(
	Func<LoopContext<TTime>, Collection<TRecord, IterationIn<TTime>>, Collection<TRecord, IterationIn<TTime>>> f,
	Expression<Func<TRecord, TKey>> keySelector,
	int maxIterations
)

Parameters

f: Type: SystemFuncLoopContextTTime, CollectionTRecord, IterationInTTime, CollectionTRecord, IterationInTTime
The subquery to apply iteratively.
keySelector: Type: System.Linq.ExpressionsExpressionFuncTRecord, TKey
Function that extracts a key from each record, to be used for partitioning the input collection.
maxIterations: Type: SystemInt32
The maximum number of iterations to compute.

Type Parameters

TKey: The key type.

Return Value

Type: CollectionTRecord, TTime
The result of applying f to this collection maxIterations times, or until fixed point is reached, whichever is earlier.

Reference

CollectionTRecord, TTime Interface

FixedPoint Overload

Microsoft.Research.Naiad.Frameworks.DifferentialDataflow Namespace