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

Robert robert.weissmann at web.de
Mon Apr 26 08:56:18 EDT 2010


Hi,

I don't understand what you mean ?

I thought with

ksession.startProcess(processName, processVariables);

they are registered.

Am 26.04.2010, 15:28 Uhr, schrieb Salaboy <salaboy at gmail.com>:

> 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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