The following simple
example illustrates how to conditionally set the derived event opcode.
In this example, if
the source window event's opcode is delete,
and its quantity is greater than 2000, set the derived event's
opcode to update, and set the price
to 8.50. Otherwise, preserve normal processing by assigning _inOpcode
to _outOpcode, and set the price to 10.00.
ds2_options sas;
package module_1/overwrite=yes;
method test_function(varchar(16) _inOpcode, int quantity,
in_out double price, in_out varchar _outOpcode);
if (_inOpcode = 'delete') and (quantity > 2000) then
do;
_outOpcode = 'update';
price = 8.50;
end;
else
do;
_outOpcode = _inOpcode;
price = 10.00;
end;
end;
endpackage;