[rules-users] Setting WorkItem parameter to object in working memory

[Mauricio Salatino]

yes
I totally agree with that..
We usually use expressions to resolve that kind of things.


On Fri, Apr 1, 2011 at 7:30 AM, Swindells, Thomas <TSwindells at nds.com>wrote:

> The rules load objects from the database, and also create new ones. One of
> the instances is the one we want to work on later – this we can get with a
> query.
>
> The script task is the way we are looking at the moment, it would be nice
> if we could skip that out and just directly map the parameter to be the
> value returned by query directly.
>
>
>
> Thanks for the help,
>
>
>
> Thomas
>
>
>
> *From:* Mauricio Salatino [mailto:salaboy at gmail.com]
> *Sent:* 01 April 2011 11:18
> *To:* Swindells, Thomas
> *Cc:* Rules Users List
>
> *Subject:* Re: [rules-users] Setting WorkItem parameter to object in
> working memory
>
>
>
> what do you mean with version of the object?
> We usually solve that with the on-entry actions of the nodes, but the BPMN2
> spec don't define those hooks to be able to execute code before and after
> each node.
> Let me review the code to see how it can be done right now.
> If you include a script task before the workitem you can get the fact from
> the working memory and set a process variable before calling the work item.
> Greetings.
>
> On Fri, Apr 1, 2011 at 7:14 AM, Swindells, Thomas <TSwindells at nds.com>
> wrote:
>
> They are new objects – or at least we don’t know which version of the
> object it is until the rules have run and worked it out.
>
>
>
> *From:* Mauricio Salatino [mailto:salaboy at gmail.com]
> *Sent:* 01 April 2011 10:45
> *To:* Rules Users List
> *Cc:* Swindells, Thomas
> *Subject:* Re: [rules-users] Setting WorkItem parameter to object in
> working memory
>
>
>
> what about adding the same object that you are inserting in the working
> memory as a process parameter?
> Are you generating new objects inside your rules and then you want to
> inject that inside a work item?
> Work Items have their own scope that should be decoupled from the knowledge
> session, so you need to find a way to copy the information from the working
> memory scope to the work item scope and the first thing that comes into my
> mind is to do it in the easiest way that it's to include that information in
> the process scope.
> Greetings.
>
> 2011/4/1 Swindells, Thomas <TSwindells at nds.com>
>
> We have a process which runs some rules against items in the working
> memory. We then want to use one of the objects in the working memory as the
> input parameter to a work item.
>
>
>
> The only way I can see to do this is to use a script step to fetch the fact
> from the wm (via a query or whatever) and then set a global, then have the
> global map into the in paramater.  This however seems very messy, scoping
> the variable far larger than it needs to.
>
> Is there a more appropriate solution which doesn’t pollute the global
> variable namespace – perhaps running some code in the work items on entry
> action to populate the parameter directly?
>
>
>
> Thanks,
>
>
>
> Thomas
>
>
> ------------------------------
>
>
>
> **************************************************************************************
> This message is confidential and intended only for the addressee. If you
> have received this message in error, please immediately notify the
> postmaster at nds.com and delete it from your system as well as any copies.
> The content of e-mails as well as traffic data may be monitored by NDS for
> employment and security purposes. To protect the environment please do not
> print this e-mail unless necessary.
>
> NDS Limited. Registered Office: One London Road, Staines, Middlesex, TW18
> 4EX, United Kingdom. A company registered in England and Wales. Registered
> no. 3080780. VAT no. GB 603 8808 40-00
>
> **************************************************************************************
>
>
> _______________________________________________
> rules-users mailing list
> rules-users at lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
>
>
> --
>  - CTO @ http://www.plugtree.com
>  - MyJourney @ http://salaboy.wordpress.com
>  - Co-Founder @ http://www.jbug.com.ar
>
>  - Salatino "Salaboy" Mauricio -
>
>
>
>
> --
>  - CTO @ http://www.plugtree.com
>  - MyJourney @ http://salaboy.wordpress.com
>  - Co-Founder @ http://www.jbug.com.ar
>
>  - Salatino "Salaboy" Mauricio -
>



-- 
 - CTO @ http://www.plugtree.com
 - MyJourney @ http://salaboy.wordpress.com
 - Co-Founder @ http://www.jbug.com.ar

 - Salatino "Salaboy" Mauricio -
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://lists.jboss.org/pipermail/rules-users/attachments/20110401/3fe938c0/attachment.html