The RVI Relay service is responsible for passing messages to the Executor Server from a channel running on the Proxy Server. To accomplish this, the service uses its service name to find a matching attachment point in the attachment point list. If there are several matching attachment points, the system applies a load balancing algorithm to select which attachment point to use. The RVI Relay service may be configured with the service name property defined as an expression, in which case the expression will be evaluated dynamically for each invocation (for example, for each message which will be relayed) prior to determining the attachment point.

The RVI Relay service can be added to a Channel definition through the iWay Service Manager Administration Console, or may be used in a process flow that is constructed using iWay Designer.

The RVI Relay service is synchronous. Depending on the timeout settings, this service will wait for a response document from the gateway before proceeding. The response document will include content, a header, and user special registers (SREGs). To return a SREG from the gateway, the SREG must be in message scope as local and flow scopes are cleared when the process flow running on the gateway ends.

Note: This section describes how to configure an RVI Relay service. To construct a fully populated iSM channel, incorporate the service into a process and then include the process as a route of the channel. For more information on how to design and build a channel, see the iWay Service Manager User's Guide.

To configure the RVI Relay service:

1. Perform the steps as described in Configuring Services.
2. Ensure that you select RVI Relay {com.ibi.agents.RVIRelay} as the service type you are configuring.

   For a complete description of the configuration parameters that are available for the RVI Relay service, see RVI Relay Service Configuration Parameters.