[rules-users] How to access process variables within a work-item (human task)

Salaboy salaboy at gmail.com
Mon Apr 26 09:28:08 EDT 2010


Did you register the equipement variable at process level? Mapping  
uses that definitions to know about the variables used across the  
processes.
Greetings

- Ing. Mauricio Salatino -

On Apr 26, 2010, at 1:56, Robert <robert.weissmann at web.de> wrote:

> Hi,
>
> I have
>
> ...
>     StatefulKnowledgeSession
> ksession.getWorkItemManager().registerWorkItemHandler("Human Task",
> taskHandler);
> ...
>
>     Map<String, Object> processVariables = new HashMap<String,  
> Object>();
>     processVariables.put("equipment", "OvenQP33");
>
>     ProcessInstance pi = ksession.startProcess(processName,
> processVariables);
> ...
>
> ... within the taskHandler.executeWorkItem(WorkItem workItem,
> WorkItemManager workItemManager):
>
> I am setting a break-point, and I am getting there, but how am I  
> able to
> access my processVariables or even set specific data for this  
> particular
> work-item ?
>
> I tried using as described in the doc "9.1 Human tasks inside  
> processes":
>
>    - Parameter mapping: Allows copying the value of process  
> variables to
> parameters of the human task. Upon creation of the human             
> tasks, the
> values will be copied.
>
> But without any success. I just not getting to the "equipment"  
> variable,
> which I need at this point of processing the work-item.
>
> The mapping I did: "equipment" -> "equipment". With the hope to find  
> them
> within workItem.getParameters(), but they are not there and nowhere- 
> else
> too.
>
> Any ideas ?
>
> Generally there are even many more settings possible for the human  
> task,
> see doc (here the list:
> Id, 
> Name,TaskName,Priority,Comment,ActorId,Skippable,Content,Swimlane,On- 
> entry
> and on-exit actions,Parameter mapping,Result  
> mapping,Timers,ParentId), but
> only a few are accessible through workItem.getParameters(). The  
> others ?
> Also, no idea to get this data.
>
> Cheers, Rob.
>
>
> -- 
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