On Thu, Aug 05, 2010 at 09:02:43AM -0400, Cappelaere Patrice wrote:
>
> Good question.
> BPMN is the visual interface. Then you export it to some intermediate format
> (like XPDL).
> When you create a process, you will need to define the input parameters.
> This is usually done at the application level (Dialog of some sorts). Then
> this gets mapped to the WorkflowProcess parameters (if you use XPDL as
> intermediate representation). Then I would need to convert to openwfe xml.
Hello,
you could re-open the ruote engine and wrap launch with your checking logic :
---8<---
module Ruote
class Engine
def check_and_launch (pdef, fields={}, variables={})
pdef, params = split_params(pdef)
check_params(params, fields)
# check_params didn't raise, clear for launch...
launch(pdef, fields, variables)
end
protected
# Splits the params from the process definition.
# Returns an array [ pdef without params, params ].
#
def split_params (pdef)
# ...
end
# Will raise an exception if something is not right...
#
def check_params (params, fields)
# ...
end
end
end
#...
pdef = bpmn2_tool.generate_process_definition()
ruote_engine.check_and_launch(pdef)
--->8---
Just an idea. (fields is the initial payload, what used to be the "launchitem").
Kind regards,
--
John Mettraux - http://jmettraux.wordpress.com
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