Re: OSWorkflow - initial action forsteps?

I don't understand how "auto=yes" would cause actions to be invoked? Would
they just happen once the step that has that action is entered in the
workflow? What if there are two actions with auto=yes?

-Pat

----- Original Message -----
From: "Hubert Felber" <[email protected]>
To: <[email protected]>
Sent: Thursday, May 08, 2003 7:15 AM
Subject: Re: [Opensymphony-developers] OSWorkflow - initial action forsteps?


>
> > Any downside to having it in?
>
> If there was a "step initial function" in the form of a pre-function,
> would it be executed every time you make a transition to the same step
> from within an action? If yes, this could be what you wanted, or not.
> The same is true for "step post functions".
>
> I vote for the proposal that Alex made. It would be great to have all
> actions with attribute "auto=yes" performed automatically.
>
> Hubert
>
> >>> Axel Müller <[email protected]> 05/08/03 08:57am >>>
> This sound really good and is what I would like to see soon :-)
> However it is limited to a single "autoaction" per step which sometimes
>
> is not enough.
> Why not have an "auto" attribute for each action? When a step becomes
> current step all actions with "auto=yes" will be performed
> automatically
> with regards to the normal condition/restriction behaviour.
>
> Axel
>
>
> [email protected] wrote:
>
> >Yup. You understand what I mean.
> >
> >Pre-functions for steps would work great and would be the cleanest
> implementation.
> >
> >As simple change you could just add an optional attribute in the
> "step" element
> >that specifies an action to take automatically when the step is
> transitioned to..
> >like:
> >
> ><step id="3" name="xxx" autoaction="101">
> ><actions>
> ><action id="101" name="Starting action...">
> >..
> >
> >As I said earlier, something like this would help the tool be useful
> as a process-
> >modelling engine for processes that have no humans..
> >
> >-Greg
> >
> >
> >
> >---- Original Message ----
> >From: Hani Suleiman
> >Date: Wed 5/7/03 15:35
> >To: [email protected]
> >Subject: Re: [Opensymphony-developers] OSWorkflow - initial
> action for steps?
> >
> >Hmm, yeah. can't think of a way to do it currently without specifying
> a
> >pre/post function in every caller. It sounds like you need the option
>
> >of specifying pre/post functions to steps, not just to actions. Am I
> >right? Does anyone else find this useful? Any objections to it? Any
> >downside to having it in?
> >
> >Hani
> >
> >On Wednesday, May 7, 2003, at 03:59 PM, [email protected] wrote:
> >
> >
> >
> >>I'm trying to model some workflows that use asynchronous processing
> >>(by sending JMS
> >>messages to some other system) in OSWorkflow and I'm finding it
> >>difficult. I can
> >>create steps than have actions (called manually ala the example) that
>
> >>send JMS
> >>messages, and I've created a JMS listener that waits for the reply
> and
> >>invokes the
> >>proper action to "complete" the step and let it transition to the
> next
> >>step, no
> >>problem..
> >>
> >>But once I transition to the next step, say "Step B", there is no way
>
> >>to
> >>automatically perform an action when the workflow transitions to that
>
> >>"step" from
> >>somewhere else (maybe from a join, or from some other step's result).
>
> >>I cant have
> >>every place that could possibly transition to Step B perform the JMS
>
> >>action.. the
> >>same workflow XML would get propagated all over the place.. I want
> >>Step B to
> >>perform the JMS action automatically whenever a workflow transitions
>
> >>to it.
> >>
> >>Seems like what I need is the <initial-actions> stanza within a
> <step>
> >>definition..
> >>That would allow the specified actions to occur whenever a transition
>
> >>is performed
> >>to that step.
> >>
> >>What do you think? How hard woud that be?
> >>
> >>Can you think or any workarounds given the current model? There
> >>doesn't seem to be
> >>any hook in the <step> definition that would allow me to perform an
> >>action.. Makes
> >>it very difficult to use the product for workflows that are
> >>"automatic" sorts of
> >>background flows, as opposed to users performing actions directly.
> >>
> >>-Greg
> >>
> >>
> >>
> >>
> >>
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> >
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Enterprise Linux Forum Conference & Expo, June 4-6, 2003, Santa Clara
The only event dedicated to issues related to Linux enterprise solutions
www.enterpriselinuxforum.com