Jdbc receiver stored procedure call

Question

This is my stored procedure in sybase
create procedure fn_acf2
    @proj_name   char(4),
    @ver         char(1),
    @function_code char(4),
    @ident_number char(9),
    @agent_id     char(6)               
    as
    declare @msg char(30)
    declare @return_code int
    declare @str_return char(5)
begin
    if @ver != "1"
       begin
         print "Invalid version number for 'FNA2'"
         return(-1)
       end
       execute @return_code = SGW003...fn_acf2_security @proj_name, @ver, @function_code, @ident_number, @agent_id
       if @@error != 0
         begin
           select convert(char(5),@return_code)
         end
    else
       return (@return_code)
end
go
MY REQUEST structure looks like
MT_Sybase_Request
statement (element of MT_Sybase_Request)
fn_acf2 (element of statement)
action (attribute of fn_acf2) ( have hard coded as EXECUTE)
proj_name(element of fn_acf2)
type (attribute of proj_name) hard coded as char
isInput (attribute of proj_name) hard coded as 1
ver(element of fn_acf2)
type (attribute of ver) hard coded as char
isInput (attribute of ver) hard coded as 1
funtion_code(element of fn_acf2)
type (attribute of function_code) hard coded as char
isInput (attribute of function_code) hard coded as 1
ident_number(element of fn_acf2)
type (attribute of ident_number) hard coded as char
isInput (attribute of ident_number) hard coded as 1
agent_id(element of fn_acf2)
type (attribute of agent_id) hard coded as char
isInput (attribute of agent_id) hard coded as 1
Should i put element name under statement as fn_acf2  or fn_acf2_security
Is the above structure correct?
I have followed these blogs
JDBC Stored Procedures
SYNCHRONOUS SOAP TO JDBC - END TO END WALKTHROUGH

Answer 1

all elements are under fn_acf2
but i want you guys look my Stored procedure
execute @return_code = SGW003...fn_acf2_security @proj_name, @ver, @function_code, @ident_number, @agent_id
in the above stmt,
iam confused why it fn_acf2_security was used instead of an_acf2 ( fn_acf2 is my Stored procedure name)
what does execute @return_code mean ( actually return_code is my response structure element)
my response wil have only elemnt which is return_code.