Release 10.1A: OpenEdge Development:
Web Services

Method return values

Client interface methods typically provide return values for Progress 4GL procedures and user-defined functions as follows:

RPC/Encoded — Methods provide return values:
Always for user-defined functions.
For procedures only when returning the 4GL RETURN-VALUE is specified in ProxyGen.
RPC/Literal — Same as RPC/Encoded.
Document/Literal — Methods provide return values:
Always for user-defined functions. The result will be either the method return value or the first output parameter.
Always for procedures. The result will either be the method return value or the first output parameter. If specified in ProxyGen, the result will be the 4GL RETURN-VALUE. If the 4GL RETURN-VALUE is not specified in ProxyGen the result is a null string.