Problem with RfcDestinationManager.UnregisterDestinationConfiguration(SaPconfiguration)

[Former Member]

I use the following code to make a SAP Connection :

Public

Shared Function CreateSapConnection (ByVal connectionString As String, ByRef exc As Exception) As RfcDestination

Try

SaPconfiguration =  New ECCDestinationConfig

RfcDestinationManager.RegisterDestinationConfiguration(SaPconfiguration)
   

Dim sapConn As RfcDestination = RfcDestinationManager.GetDestination(connectionString)

Return sapConn

Catch ex As Exception

SendMail.SendMail(Nothing, "Error Sap Connection : " & ex.Message)

Dim errNoConnection As New Exceptions.ConnectionError("SAP Error : " & ex.Message)

exc = errNoConnection

Return Nothing

End Try

End Function

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Public Shared Sub CloseSapConnection(ByRef exc As Exception, ByVal remark As String)

Try

RfcDestinationManager.UnregisterDestinationConfiguration(SaPconfiguration)

Catch ex As Exception

' Log error....

End Try

End Sub

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I use 'CreateSapConnection', do my Sap stuff and use 'CloseSapConnection'.

I now get irregularly 'Invalid destination configuration' and after that always 'Destination configuration already initialized'.

Anybody any idea to trace the problem or to solve this.

Thanks in advance,

Hans

[MarkusTolksdorf]

Hello Hans,

a destination should not be treated as connection, it is only reflecting the configuration and allows to invoke a function module in the configured system. An implementation of IDestinationConfiguration is even more, it's reflecting the whole set of existing configured destinations. Hence, if you implement a destination storage of your own, you should only register it once when starting up your application. Afterwards, simply get the destination via RfcDestinationManager and invoke the function module. Connection management is done internally within NCo. No need to open or close connections, this is done by the NCo runtime.

Best regards,

Markus

[LJB]

Moved by Moderator, not an EP-KMC related issue