[rules-users] Drools Flows on web systems?

[Cristiano Gavião]

Hi drools people,

I came from a long desktop-swing development history, and I always  
used statefull connections for everything :-). Now, I have to  
adventure myself on a web app and I'm learning drools, seam or grails  
for that.

With swing examples I could understand well how to use drools...  I  
got some tests working well.... But now Im getting some difficult to  
understand some concepts with web development. But I'll get there some  
day :)

I would like to hear from you people about some things on drools that  
I couldn't figure out yet.

Suppose that I have a long process with sub-process and lots of  
activities. some of this activities should run automatically by the  
system and some activated by human hands (by some forms to fill, some  
decision to take, etc). A really workflow.... And I want to track  
every step on this process and who is the people doing the human  
tasks.... This is a job for Drools Flows, right?

What should be the best approach to take for using drools flows on  
this kind of system??? Should I use Drools Server or Guvnor or both  
for that job?

And about drools sessions, should I always use Stateless sessions with  
those servers?

How could I persist the long process flow instances on a web system?

And about processes scopes, for example, one global variable  
declarared in a dsl, used by some rule that is running on different  
process instances, they share same value?

Can I have a kind of callback like the on PetStore example that came  
with stateless sessions?


Thanks in advance for any help or suggestions


_________________________
Cristiano Gavião