Error using ConnectorGatewayService

Hi all,

IConnectorGatewayService cgsvc=(IConnectorGatewayService)PortalRuntime.getRuntimeResources().getService(IConnectorGatewayService.KEY);

In the above code I get an error saying IConnectorGatewayService.KEY cannot be resolved.

I have added the com.sap.portal.ivs.connectorservice_api.jar file.

Please help.

regards

Noufal