On Thu, Jul 08, 2010 at 01:22:36AM -0700, Don French wrote:
>
> I am looking at ways to put processes in ruby classes. The approach I
> am thinking about is:
>
> module Processes
> class TestProcess
>
> def initialize(value)
> @pdef = Route.process_definition :name => 'test' do
> sequence do
> result = some_method(value) # this could be outside the
> process definition
> set :field => 'value' => value
> participant :process_value_participant
> participant :finish_with_value
> end
> end
>
> def process
> @pdef
> end
>
> def some_method(value)
> value
> end
> end
> end
>
> Does this make sense? or is there a better way.
Hello Don,
it seems you want to create some kind of [process definition] generation. I'd
recommend something like :
---8<---
module Processes
class TestProcess
def initialize (initial_values)
@iv = initial_values
end
def generate (values={})
values = @iv.merge(values)
Ruote.process_definition :name => 'test' do
sequence do
set 'f:value' => values['value']
participant :process_value_participant
participant :finish_with_value
end
end
end
def launch (engine, values={})
engine.launch(generate(values))
end
end
end
tp = Processes::TestProcess.new('value' => 'initial')
tp.launch(engine)
tp.launch(engine, 'value' => 'overriden')
--->8---
Please note that if you only need to set initial values for the workitem
fields, you can go with
---8<---
pdef = Ruote.process_definition :name => 'test' do
sequence do
participant :process_value_participant
participant :finish_with_value
end
end
engine.launch(pdef, 'value' => 'my first value')
engine.launch(pdef, 'value' => 'my other value', 'sum' => 5)
--->8---
These two examples can be extended and refined.
Best regards,
--
John Mettraux - http://jmettraux.wordpress.com
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