An inbound call scenario is an external Web service program that invokes an Oracle Tuxedo service through the SALT gateway. The following figure depicts message streaming between a Web service client and an Oracle Tuxedo domain.

The following figure Message Conversion Plug-in Works in an Inbound Call Scenario

When a SOAP request message is delivered to the GWWS server, GWWS tries to find if there is a message conversion plug-in instance associated with the input message conversion of the target service. If there is an associated instance, the GWWS invokes the customized (*soap_in_tuxedo__CUSTBUF) function implemented in the plug-in instance.

When an Oracle Tuxedo response buffer is returned from the Oracle Tuxedo service, GWWS tries to find if there is a message conversion plug-in instance associated with the output message conversion of the target service. If there is an associated instance, GWWS invokes the customized function (*soap_out_tuxedo__CUSTBUF), implemented in the plug-in instance.