How to distinguish the type of object that came in the JMS message.

Question

I have a queue that has 4 different object's being sent through messages across the queue. Depending on the object that comes in I need to determine what process to start. I have created a master project with a single queue listener that will start the master process. Either before the listener starts the master process or after the master process starts in a method I need to figure out the type of object that was contained in that method. In Java its simply if(msg InstanceOf ObjectB), else if (msg InstanceOf ObjectC)....and so forth. What is the way this would be done in ALBPM6.0's fuego code or whatever it is called?

Answer 1

In case you had an ID, which is assigned automagically on emp, this could also be written like this:
create trigger emp_trig
after insert or update or delete on emp
for each row
begin
insert into emp_log values(
:new.empno, :new.ename,
decode(nvl(:old.id,-1),-1,'Insert',decode(nvl(:new.id,-1),-1,'Delete','Update')), sysdate);
end;
..where -1 is a value you do not expect to be propagated ever in id column. Also, :new.empno and :new.enmae will be null if the dml being executed is a delete statement.