process design

[sergey.rybets]

Guys sorry for distrub.
I've got a question - for example I have activity in process that should iterate via several clients (stored in DB) and send for each e-mail simultaneously (in one activity but for each notification should be created a task in process).
Does smth like for (Client client : clientCollection) {client.notifyViaEmail(); }
can be implemented somehow in process definitions? I can't hardcode the number of clients in process because that enough large number and need to execute this activity to create one task for each client (emailng just an example - but it shoul be executed on cluster system, and each task will be executed on cluster node).

Thanks a lot for help.

[estaub]

Sergey,

See http://wiki.jboss.org/wiki/Wiki.jsp?page=ForEachForkActionHandler.

-Ed Staub

[sergey.rybets]

Ed, thank you, you saved me

[sergey.rybets]

one more question - if I dont know the count of subtasks for which process should be spawned - is there a dynamical spawning?
In specified example there is only 2 nodes in fork - but can this number be dynamical? not hardcoded in process definition?
For example I need to generate report for each selled item - and I can't define that smbd can sell only defined number of items.

Thank you.

[kukeltje]

yes, just use a processvariable for that. Store the number in advance and read it in the foreachforkhandler.

[sergey.rybets]

Ronald, could you please make an example of using process variable in that case? That would be a great help. Thank you

[kukeltje]

I bet it would be a great help, but if you look at the foreachactionhandler you'll see variables are already created and if you read a little more on jbpm, you'll see that these actionhandlers for nodes are 'identical' to actionhandlers that perform actions on events. Lots of examples of these, including ones which read variables.

So the answer is: no, sorry.

[sergey.rybets]

I'll try to make it out, thank you ;)