Access process info from spring bean invoked in the condition expression

[eaenes...@gmail.com]

We are able to call spring bean methods in the condition expressions.

<sequenceFlow>
<conditionExpression xsi:type="tFormalExpression">
${beanClass.beanMethod() == 'foo'}
</conditionExpression>
</sequenceFlow>

Can we access current process info(processInstanceId, processDefinitionId, etc...) in the bean method; just like we can in the service tasks with the DelegateExecution class.

[Ingo Richtsmeier]

Hi,

just add the execution as a parameter to your method:

${beanClass.beanMethod(execution)}

From the DelegateExecution you have access to the process context. 

Kind Regards,

Ingo

[eaenes...@gmail.com]

30 Aralık 2015 Çarşamba 11:14:06 UTC+2 tarihinde Ingo Richtsmeier yazdı:

Thanks Ingo.
I also wanted to know if there is a way to get the user who completed the previous task of the sequence flow?

[Ingo Richtsmeier]

There are some internal reserved variables and functions:

https://docs.camunda.org/manual/7.4/user-guide/process-engine/expression-language/#internal-context-variables

https://docs.camunda.org/manual/7.4/user-guide/process-engine/expression-language/#internal-context-functions

Kind Regards, Ingo

[Philipp Ossler]

Hi,

there are different ways to resolve the user who completed the previous task:

* using a process variable: use a task listener [1] and set the name of the user in a process variable which can be used later

* using the history: use the history service to query for the previous task

If you have a simple process (e.g. no parallel gateway) then you can find the previous task by ordering on the completion time. 

HistoricTaskInstance task = historyService.createHistoricTaskInstanceQuery().processInstanceId(execution.getProcessInstanceId()).orderByHistoricTaskInstanceEndTime().desc().singleResult();

String assignee = task.getAssignee();

Otherwise, you may use the model API to find the previous task first. Then you can use the activity id of the task instead of the ordering.

Greetings,

Philipp

[1] https://docs.camunda.org/manual/7.4/user-guide/process-engine/delegation-code/#task-listener