CepStream.CountByStartTimeWindow<TPayload> Method (CepStream<TPayload>, UInt32, WindowInputPolicy, CountWindowOutputPolicy)
Groups input stream events into windows of events based on a given number of unique event start times. The window slides when a new event arrives that starts at a different time.
Namespace: Microsoft.ComplexEventProcessing.Linq
Assembly: Microsoft.ComplexEventProcessing (in Microsoft.ComplexEventProcessing.dll)
Syntax
public static CepWindowStream<CepWindow<TPayload>> CountByStartTimeWindow<TPayload>(
this CepStream<TPayload> source,
uint numberOfEventStartTime,
WindowInputPolicy inputPolicy,
CountWindowOutputPolicy outputPolicy
)
Type Parameters
- TPayload
The type of the input event payload.
Parameters
- source
Type: Microsoft.ComplexEventProcessing.Linq.CepStream<TPayload>
The CepStream to apply the window operation against.
- numberOfEventStartTime
Type: System.UInt32
The window size by number of unique event start times.
- inputPolicy
Type: Microsoft.ComplexEventProcessing.Linq.WindowInputPolicy
Indicates how events are altered before being input into the window operation.
- outputPolicy
Type: Microsoft.ComplexEventProcessing.Linq.CountWindowOutputPolicy
Indicates how output events of the window operation are altered or defined before they are introduced back into the stream.
Return Value
Type: Microsoft.ComplexEventProcessing.Linq.CepWindowStream<CepWindow<TPayload>>
A window stream to which aggregates, ranking or user-defined operations can be applied.
Usage Note
In Visual Basic and C#, you can call this method as an instance method on any object of type CepStream<TPayload>. 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).
Remarks
For more information about windows, see Using Event Windows.