Passing values between task nodes

[harpritt]

Hi everyone

Ive posted this in the seam board but on reflection i think this i probably best here

I was just wondering if there was a way of passing variables from my decision node on to the next tasks

below i have a decision not that has access to #{changerequest}, id like to be able to access the changerequest in the task-node but i sppose its outside the scope.

is there a way to pass on a variable?

as allways many thanks for any help.

<decision name="decide" expression="#{#somthing.expression}">

 <transition name="yes" to="approver_approve_CR"/>
 <transition name="no" to="assign_approver_to_CR"/>
 </decision>

 <task-node name="assign_approver_to_CR">
 <task name="assign_app_to_CR" description="unknown">
 <!-- This will appear in the pooledtasklist not the taksList -->
 <assignment pooled-actors="CRS_Processor"/>
 </task>
 <transition name="submit" to="approver_approve_CR"/>
 </task-node>

 <task-node name="approver_approve_CR">
 <task name="ap_approve_cr" description="#{crId}">
 <assignment actor-id="#{changerequest.crApprover}"/>
 </task>
 <transition name="accept" to="process_CR"/>
 <transition name="reject" to="editor_revise_CR"/>
 </task-node>

[harpritt]

ive temporaily fixed this by adding a session scoped varaible rather than a conversational scoped one...

i dont like this ... but it works.

[estaub]

By "session scoped", do you mean "token-scoped" by adding variables to the process definition, or are you referring to something outside of JBPM?

If you mean "token-scoped", AFAIK this is the standard way to pass data from node to node. I'm curious - why don't you like it?

-Ed Staub

[harpritt]

Hi estaub

im using SEAM, SESSION scope is one of the contexts that you can work in and is also made available to the process definition...placing my variab in the session scope meant that it was available to the node imediatly following the descision node... as long as the session is not destroyed durring the decision im OK .... but i hate this method... and is esentially a hack..

[estaub]

harpritt,
Couldn't you copy the value into a process variable, using a task controller?
See http://docs.jboss.com/jbpm/v3/userguide_single/#taskcontrollers
-Ed Staub[/url]

[harpritt]

hi ya

Ill give that a look mate

nice one estaub