How to know the value of a variable from another pool ?

Submitted by yannick.lombardi on Thu, 08/07/2014 - 14:44
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Hi,

Is it possible to know the value of a variable that is in a Pool A from a task in a Pool B ?

I have a variable in my process A that changes value often. And my process B needs sometimes to know the value of this variable.

Maybe I can do that with the process Api.

Thanks in advance for your help.

Comments

Submitted by rahmi.hichem on Thu, 08/07/2014 - 15:40

Hello,

You can know the value of your variable at any moment , you have juste to use "Send message event" (In ur process where your variable gets her different values) and catch it in the other process with "Receive message event"

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Submitted by yannick.lombardi on Thu, 08/07/2014 - 15:52

The process A (where the variable is) doesn't know when the process B want to know the value. So I can't do that. They are not synchronized.

This is the process B that need to read the value in process A.

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Submitted by haris.subasic on Thu, 08/07/2014 - 15:52

I would go for the API, since you can invoke it "on demand". http://documentation.bonitasoft.com/javadoc/api/6.3/org/bonitasoft/engin...

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Submitted by yannick.lombardi on Thu, 08/07/2014 - 15:58

I also found this function a few minutes ago. Now I search how to know the process ID.

EDIT : I think that Process A can send its Instance ID when the other processes begin.

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Submitted by francois.chevresson on Thu, 08/07/2014 - 16:06

Hi,

You need some kind of correlation key. Do you have multiple process A and B instances running at the same time? Are process A and B started independently or one after another?

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Submitted by yannick.lombardi on Thu, 08/07/2014 - 16:11

Process A is unique. Process A start before all the other process. Process B is multiple and is started independently some time after A.

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Submitted by francois.chevresson on Thu, 08/07/2014 - 23:35

if Process A is unique, the easiest might be to: - retrieve the processDefinitionID:

final SearchOptionsBuilder builder = new SearchOptionsBuilder(0, 5);
        builder.filter(ProcessDeploymentInfoSearchDescriptor.NAME, "My_ProcessA");
        final SearchResult<ProcessDeploymentInfo> searchRes = getProcessAPI().searchProcessDeploymentInfosStartedBy(userId, builder.done());
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Submitted by yannick.lombardi on Fri, 08/08/2014 - 09:22

Thanks francois. I find a solution based on your idea. Here is my code :

import org.bonitasoft.engine.search.*;
import org.bonitasoft.engine.bpm.process.ProcessInstance;
import org.bonitasoft.engine.bpm.process.ProcessInstanceSearchDescriptor;

// I search the process A
final SearchOptionsBuilder builder = new SearchOptionsBuilder(0, 5);
builder.filter(ProcessInstanceSearchDescriptor.NAME, "My_ProcessA");
final SearchResult<ProcessInstance> searchRes = apiAccessor.getProcessAPI().searchProcessInstances(builder.done());

// The process is unique so it is the first one in the result
Long processId = searchRes.getResult().get(0).getId();

// My variable is a boolean
Boolean test = apiAccessor.getProcessAPI().getProcessDataInstance("My_VariableInA", processId).getValue();
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