lib-bpmn-engine
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nitram509
change task handler to allow input and output parameter as in BPMN
bpmn service tasks can be configured with input and output parameters. currently, the engine can't handle such. thus, it would be cool to have this feature implemented
must be moved to milestone 0.3, because this requires expression language support
Is this feature developing? It's a useful feature and I'm interested in helping implement it.
Is this feature developing? It's a useful feature and I'm interested in helping implement it.
As the label says: "help wanted". You're very welcome to implement it.
When you're working on it, may I ask you to "assign on this ticket" - just that I and others know you picked it up
I'd like to have a try.
I'd like to implements this feature like what camunda behavior (https://docs.camunda.io/docs/components/concepts/variables/), but since bpmn does not have expression I will still use antonmedv/expr to evaluate expression and set output variable to variableContext.
Do you have any suggestions?
Good point about using 'expr' ... that should work, since it can handle strings etc.
About the variable resolution ... you might can split this feature to
- first only support global/single scope (per instance)
- second introduce scoping, as described on camunda's page you linked.
Agreed, since we don't support sub-process now, I'll support global scope in the first version. When somebody really needs scope control or supporting sub-process by the engineer, it's a good time to discuss about introducing scope again.