CepStream.Where<TPayload> Method (CepStream<TPayload>, Expression<Func<TPayload, Boolean>>)

Filters events from an input stream using a given filter function.

Namespace:   Microsoft.ComplexEventProcessing.Linq
Assembly:  Microsoft.ComplexEventProcessing (in Microsoft.ComplexEventProcessing.dll)

Syntax

public static CepStream<TPayload> Where<TPayload>(
    this CepStream<TPayload> source,
    Expression<Func<TPayload, bool>> filter
)

public:
generic<typename TPayload>
[ExtensionAttribute]
static CepStream<TPayload>^ Where(
    CepStream<TPayload>^ source,
    Expression<Func<TPayload, bool>^>^ filter
)

static member Where<'TPayload> : 
        source:CepStream<'TPayload> *
        filter:Expression<Func<'TPayload, bool>> -> CepStream<'TPayload>

<ExtensionAttribute>
Public Shared Function Where(Of TPayload) (
    source As CepStream(Of TPayload),
    filter As Expression(Of Func(Of TPayload, Boolean))
) As CepStream(Of TPayload)

Parameters

• source
  Type: Microsoft.ComplexEventProcessing.Linq.CepStream<TPayload>

  The source stream.

• filter
  Type: System.Linq.Expressions.Expression<Func<TPayload, Boolean>>

  The filter function.

Return Value

Type: Microsoft.ComplexEventProcessing.Linq.CepStream<TPayload>

The stream of filtered events.

Type Parameters

• TPayload
  The type of the input event payload.

See Also

Where Overload
CepStream Class
Microsoft.ComplexEventProcessing.Linq Namespace

Return to top