NonStandardExtensionMethodsIterateTRecord, TTime Method (StreamTRecord, TTime, FuncLoopContextTTime, StreamTRecord, IterationInTTime, StreamTRecord, IterationInTTime, FuncTRecord, Int32, ExpressionFuncTRecord, Int32, Int32, String)Naiad Help

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

Iteratively applies function to the given stream.

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

C#
public static Stream<TRecord, TTime> Iterate<TRecord, TTime>(
	this Stream<TRecord, TTime> stream,
	Func<LoopContext<TTime>, Stream<TRecord, IterationIn<TTime>>, Stream<TRecord, IterationIn<TTime>>> function,
	Func<TRecord, int> iterationSelector,
	Expression<Func<TRecord, int>> partitionedBy,
	int iterations,
	string name
)
where TTime : Object, Time<TTime>

Parameters

stream
Type: Microsoft.Research.NaiadStreamTRecord, TTime
The input stream.
function
Type: SystemFuncLoopContextTTime, StreamTRecord, IterationInTTime, StreamTRecord, IterationInTTime
The Naiad computation to apply iteratively.
iterationSelector
Type: SystemFuncTRecord, Int32
Function that maps an input record to the iteration at which that record should be introduced.
partitionedBy
Type: System.Linq.ExpressionsExpressionFuncTRecord, Int32
Partitioning function for the input stream.
iterations
Type: SystemInt32
The number of iterations to perform.
name
Type: SystemString
Descriptive name for the loop.

Type Parameters

TRecord
The type of the input records.
TTime
The type of timestamp on each record.

Return Value

Type: StreamTRecord, TTime
The stream corresponding to applying function to the input iterations times.

Usage Note

In Visual Basic and C#, you can call this method as an instance method on any object of type StreamTRecord, TTime. 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).
See Also

Reference