A character variable that specifies the URI of a SOAP role.
The role can be used to indicate the recipient of a SOAP header element.
Call
this method once you have associated the XML with a SOAP header entry
using the SET-NODE( ) method.
Note: In SOAP Version 1.2,
the SET-ROLE method replaces the SOAP Version 1.1 SET-ACTOR
method. A runtime error occurs if the AVM sends a ROLE attribute
in a SOAP header to a SOAP Version 1.1 Web service.