jBPM 4 start parameters

[modchen]

My goal is to run java code in a process with some given start parameters

After some research I found this in the userguide :

4.3.4. With variables

A map of named parameter objects can be provided when starting a new process instance. These parameters will be set as variables on the process instance between creation and start of the process instance.

...

executionService.startExecutionByKey("MyProcess", variables);

This is the part in my process.jpdl.xml :

<java name="executeMyCode"
 class="org.jbpm.examples.java.MyClass"
 method="doSomething"
 var="response"
 g="96,16,127,52">

 <arg>####</arg>

 <flow to="goToNextStep" />
 </java>

What do I have to replace #### with, to get this working ? Or isn't this possible ? Looking the other examples, it should be something like "#{myvar}"

[flavio.donze]

hello modchen

have you found a solution for this? I'm having the same problem, don't know how to pass a variable.

Or has anybody else done this?

Thanks for any help
flavio

[swatis]

you want to run some java code in process that code you can put in action handler class.

[swatis]

and you want to provide some parameters to that action handler class you can do that...
lets say you wnat to pass name, age as params to class

xyz
21

and in class method you can access this as instance variable.

[swatis]

<action class="ExecutionSomeCode">
<name>xyz</name>
<age>21</age>
</action>

sorry didnt put code in code tags

[flavio.donze]

Hi swatis

Thanks for your reply!

Well is "action" supported in 4.0.0?
http://docs.jboss.com/jbpm/v4.0/userguide/html_single/#jpdl
Can't find it there.

I don't want to pass static parameters like 21 or xyz, I want to pass a variable passed on start up.

Like: Start flow with a Person object, call "validate" java call and pass this person as parameter....

modchen describes exactly what I want to do.

Do you have any clue how to do this?

[tom.baeyens]

the feature request to have expressions is here:
https://jira.jboss.org/jira/browse/JBPM-2279

and there is another issue that says i have to document the possible values better: https://jira.jboss.org/jira/browse/JBPM-2215