CepStream.Select<TInput, TResult> Method (CepWindowStream<CepWindow<TInput>>, Expression<Func<CepWindow<TInput>, TResult>>)
Maps a window stream to a stream based on a given mapping expression.
Namespace: Microsoft.ComplexEventProcessing.Linq
Assembly: Microsoft.ComplexEventProcessing (in Microsoft.ComplexEventProcessing.dll)
Syntax
public static CepStream<TResult> Select<TInput, TResult>(
this CepWindowStream<CepWindow<TInput>> source,
Expression<Func<CepWindow<TInput>, TResult>> selector
)
Type Parameters
- TInput
Input event payload type of the window.
- TResult
Result payload type.
Parameters
- source
Type: Microsoft.ComplexEventProcessing.Linq.CepWindowStream<CepWindow<TInput>>
Stream of windows.
- selector
Type: System.Linq.Expressions.Expression<Func<CepWindow<TInput>, TResult>>
Defines the mapping expression.
Return Value
Type: Microsoft.ComplexEventProcessing.Linq.CepStream<TResult>
A stream which is the union of all window streams.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type CepWindowStream<CepWindow<TInput>>. When you use instance method syntax to call this method, omit the first parameter. For more information, see https://msdn.microsoft.com/en-us/library/bb384936(v=sql.105) or https://msdn.microsoft.com/en-us/library/bb383977(v=sql.105).