ActivityExecution flush a variable immediately

[mpriess]

Hello,

I extended the class TaskActivitiyBehavior to write a own task.

In the method "public void execute(ActivityExecution execution)" I changed a variable and started a new thread which should access the the changed variable.

execution.getVariable("A");

Change the variable from 0 to 1;

execution.setVariable("A", 1);

startNewProcessInAnotherThread();

If I try to access the variable from the new launched process the value is 0. How can I flush the value immediately?

[trademak]

You can't because the database connection is managed by the Activiti Engine and an execution tree is persisted to the database after it reaches a wait state.

Best regards,

[mpriess]

Can I use the runtime service in my class to persiste the values earlier?

[jbarrez]

Not really, cause the process instance won't exist yet (it's also flushed at the end).

What is the use case you're trying to solve here?

[mpriess]

I have a task which launch 1..n new process instances depending on the configuration which is passed to the parent task.  If one of my new processes fail the parent task should be stopped. I also use the parent process actually to save the state and the configuration in a object. This informations are used for visualisation.

[jbarrez]

Can't you use a call activity in a multi instance for this?

[mpriess]

Do you have a example for a multi instance activiti?

[jbarrez]

I do. As does the documentation and our unit tests ….