[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-13 Thread Olivier_Debels

Well I guess you can create your own custom task instance which can deal with 
this.  It just requires overriding of the end() function and keeping a TaskNode 
reference.  Haven't tried it but I guess this would work.




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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread cpob
"[EMAIL PROTECTED]" wrote : didn't read the whole thread.   sorry if i 
duplicate an answer.
  | 
  | ...but did you consider defining the tasks in the task-node and specify 
create-tasks="false" on the task node ?  that way, can still fetch the task 
definitions and create instances at runtime and you have the 
  | link to the task-node.

I mentioned this as an alternative in one of my earlier posts.  However, the 
problem with this, is that it puts the burden of creating the mandatory tasks 
on us.  Something we'd much rather let jBPM handle, since it does it already.

Sure, it's not hard to make our code create the mandatory task instances, as we 
are already creating optional task instances, but I'm a big fan of 
configurability :)

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread [EMAIL PROTECTED]
didn't read the whole thread.   sorry if i duplicate an answer.

...but did you consider defining the tasks in the task-node and specify 
create-tasks="false" on the task node ?  that way, can still fetch the task 
definitions and create instances at runtime and you have the 
link to the task-node.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread Olivier_Debels
anonymous wrote : "Olivier_Debels" wrote : And what if the task def is not 
defined in a task node?  I don't think a ref to task defs is possible. 
  |   | 
  |   | Just wandering if the task/task node link as it exists now can' t be 
extended.
  | 
  | Not sure if I follow you with this one.  If a task def is not linked to a 
task node, it would just be the process task like we talked about.  It would 
still be created (if using our flag idea) conditionally, depending on if the 
user creates the instances, or a task event, etc.

Never mind, I was just thinking about splitting definition of a task and 
linkage to a node (task node).  Anyway at some point you need to define the 
link.

Greetz,

Olivier.

anonymous wrote : 

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread cpob
"Olivier_Debels" wrote : "cpob" wrote : 
  |   | Making the change to support the AUTOCREATE column is far simpler than 
creating an optional task node.  All that is needed is the if..statement in 
TaskNode's execute method and then support for the new column in the 
mapping/etc.
  | 
  | Yep, I agree.
  | 
  | I this also useable if you want to create 2 mandatory and 3 optional 
instances of the same task def?

Yes, that is what we would be using it for.  It would allow the task to control 
it's fate for creation.

"Olivier_Debels" wrote : And what if the task def is not defined in a task 
node?  I don't think a ref to task defs is possible. 
  | 
  | Just wandering if the task/task node link as it exists now can' t be 
extended.

Not sure if I follow you with this one.  If a task def is not linked to a task 
node, it would just be the process task like we talked about.  It would still 
be created (if using our flag idea) conditionally, depending on if the user 
creates the instances, or a task event, etc.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread Olivier_Debels
"cpob" wrote : 
  | Making the change to support the AUTOCREATE column is far simpler than 
creating an optional task node.  All that is needed is the if..statement in 
TaskNode's execute method and then support for the new column in the 
mapping/etc.

Yep, I agree.

I this also useable if you want to create 2 mandatory and 3 optional instances 
of the same task def?

And what if the task def is not defined in a task node?  I don't think a ref to 
task defs is possible. 

Just wandering if the task/task node link as it exists now can' t be extended.

Anyway, I think your solution indeed gives an added value.

Thx,

Olivier.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread cpob
"Olivier_Debels" wrote : 
  | Well I guess you can create your own custom task instance which can deal 
with this.  It just requires overriding of the end() function and keeping a 
TaskNode reference.  Haven't tried it but I guess this would work.

I don't think that would change my issue of creating optional task instances 
only when we want.

Making the change to support the AUTOCREATE column is far simpler than creating 
an optional task node.  All that is needed is the if..statement in TaskNode's 
execute method and then support for the new column in the mapping/etc.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread cpob
Olivier_Debels wrote : AFAIK you don't need the link task/tasknode. You can 
just have a task def tied to the process definition and create task instances 
in the task node (using event handlers f.e.). You can actually create task 
instances in any node. 

We're already doing this.  We have optional process tasks being created along 
the flow with various task nodes.  We are creating them, tied to the process, 
not the task node, and they just need to be completed anytime during the 
process.

However

Olivier_Debels wrote : anonymous wrote : but it's important we have the 
task/tasknode relationship
  | 
  | Why?

It is very important that we have some optional node tasks created with a task 
node relationship, because we want some optional node tasks to block the task 
node.  If 1 mandatory and 3 optional node task instances are associated with a 
given node, we want the node to be blocking until all 4 tasks are completed.


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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-11 Thread Olivier_Debels
anonymous wrote : There's no way to tie a task instance to a task node. It's 
only through the task def that there's a link between task/tasknode.

AFAIK you don't need the link task/tasknode.  You can just have a task def tied 
to the process definition and create task instances in the task node (using 
event handlers f.e.).  You can actually create task instances in any node.

anonymous wrote : but it's important we have the task/tasknode relationship

Why?

anonymous wrote : We could just have NO tasks created at node entry, and 
manually create a task instance ourselves, but allowing the tasks to be created 
conditionally seems more elegant

You can also create the tasks defined in the task node (mandatory ones), and 
create the ones defined at process definition level optionally.




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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-10 Thread cpob
anonymous wrote : Then you can create a task instance of the mandatory task in 
the task node

There's no way to tie a task instance to a task node.  It's only through the 
task def that there's a link between task/tasknode.

I'm already creating the other task instances using event handlers, but its 
important we have the task/tasknode relationship, and important not all are 
created at node entry.

We could just have NO tasks created at node entry, and then we manually create 
a task instance ourselves, but allowing the tasks to be created conditionally 
seems more elegant.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-10 Thread Olivier_Debels
I think you can do something like:

Adding a task definition directly under the process definition (and not in the 
task node) and play with this:

* Then you can create a task instance of the mandatory task in the task node:
   + By using an event if you want to use the task definition under the process 
definition
   + By putting another task definition in the task node and setting 
"create-task" true

* You can create the other task instances using event handlers for example.   

If you look at the test cases under org.jbpm.jpdl.patterns you can find some 
examples.

Hope this helps,

Olivier.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-10 Thread cpob
To add additional tasks during runtime, you'd have to create new task 
definitions.  These tasks are already defined and created, we just don't want 
instances automatically started for every task def when the task node enters.

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[jboss-user] [JBoss jBPM] - Re: Task Nodes - conditionally create tasks?

2006-10-09 Thread kukeltje
then why not have the task created by jbpm and ADD additional tasks runtime 
afaik that is a normal supported option. 

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