4 is in the works, but probably isnt enterprise ready quite yet. If you have a
short time to market, I would say use 3.2x
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Default functionality of eclipse or not, its annoying as shit.
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=)
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What does your jbpm configuration look like?
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Your zip doesnt contain the processdefinition.xml in the root pretty
straight forward.
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Are you putting #variablename or just variablename?
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There are plenty of examples with 3.x.
You should just deploy the process definition with the class for 3.x.
Brad
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Your fork 40,000 times will run in one transaction unless you make the
subprocess run asynchronously.
Thus, I would imagine that your transaction is timing out to cause this
exception... as 4 processes would take a lot of time to spin up.
When the transaction times out, the next would
Make sure as you change form fields in the editor, you click enter to allow the
form field change to take place in the eclipse plugin.
Seems to be a bug, and the enter seems to be a work around.
Try it and let me know.
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Does JBoss Messaging work with the ha-local-tx-datasource?
Also, if ha-local-tx-datasource is available to JBoss Messaging, are there any
known complications that should be noted for database replication between the
databases registered in the ha-local-tx-datasource?
Thanks!
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Yes. You will need to provide more information on your errors.
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Maybe we could expose these functions in the jbpm console for 3.x branch. That
would expose the operations on other web servers other than JBoss.
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I am not sure of an official global event handler. I dont believe there is a
way to do that, but here is one possible solution otherwise.
One option would be to write a log handler that executes on the different logs
to send events. Most of the event types are logged, so you could get at the
Yeah, my suggestion here is the following.
First, I dont think this is as efficient as it should be. However, this is my
suggestion at the most efficient result.
Create a DTO that includes the values you want in the grid. Then do a HQL
query to fetch the task instance. The key is to make
There isnt a way to assign a task in a subprocess to the user of a swimlane in
the super process out of the box is there?
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Hello. I have created a POJO JMX MBean that uses the jBPM API to do something
similar.
Compiling this will produce a JAR. Put that JAR into the deploy directory of
the server, where the jBPM libraries are also on the server's classpath. If
you bring up the JMX management console, you should
I dont think that EJB timers should use XA data sources. I don't know if you
have it configured that way or the exception is occurring because of something
else, but wanted to suggest this to you.
While this doesn't give you a definitive answer on the datasource type of EJB
timers, if does
What is meant by:
anonymous wrote :
| In the case of jBPM, control flow cannot be changed by the jBPM exception
handling mechanism.
|
It seems that this is almost directly contradicted in the next statement in the
document:
anonymous wrote :
| Note that in an action that handles an
I agree with Ronald. Using the explicit signal() is the better way to do it.
It allows the code to be read and understood more easily. The problem with the
default signal() is that it is completely order based.
If anything, there should be an attribute to mark it default. But there
Ronald, maybe I am wrong, but it is talking about your Action within the
exception-handler moving the exception to an arbitrary node. But before
that, it states:
anonymous wrote :
| In the case of jBPM, control flow cannot be changed by the jBPM exception
handling mechanism.
|
I
This is happening because EJB Timers loads before jBPM. But if you change that
load order, jBPM still waits on ejb timers I think. Anyone have a solution?
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I got logging working by the way with 3.3.1. It was user error =)
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Is anyone getting task logs in 3.3.1GA?
Thanks,
Brad
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Your start states dont have any transitions...
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By from the UI, I mean the jBPM console.
I know there is a way to get the task that fired the event, but is there a way
to get the task instance?
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Have you selected the deployment package or process definition file?
The deployer expects you to have a zip file [jar, par, zip, extension doesnt
matter] with the following contents:
processdefinition.xml
gpd.xml
processimage.jpg
And also a folder containing classes, if there are any being
I guess I could solve this by getting all instances from the
executionContext.getTaskMgmtInstance().getTaskInstances();
Then looping through and finding the task where the token is the same as the
token off of the action... but I assume there is a better way?
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Your link to the process image is broken. Fix it and I can take a look.
But if you have nodes with an action attached to each, remember that you are
responsible for telling the node with actions attached where to signal.
Otherwise, if you just want an action to trigger, and not determine
Sounds like it would fit fine.
I would use a state shape with a timer on the shape to query [this would be a
polling pattern] periodically. If the database contains the proper number of
records, signal from the state shape.
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@Ronald,
Just so I can think about the difference in approaches, what are your thoughts
on why it would be more difficult to do certain exit strategies with my
suggested dynamic task-instance approach?
I guess the join would make sure everyone completed before leaving the
fork-task-join block,
But couldn't that more complex logic also be coded into the event on the
task-end? Just playing devil's advocate.
The custom join does add a lot of flexibility, so I know what you mean there.
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I just tried this by the way. It works great for cases where you want a number
of tasks created. But, as Ronald suggested, more complicated cases require the
join pattern. In such cases, a lock token exception is thrown; for example, if
I have an event on the end of the task instance to kill
I have an task-end event, and I want to grab a local variable off of the
taskinstance. How do I do this? From the UI, I can see the variables, but I
can not figure out how to get a reference to the task instance from the event's
action.
Thanks!
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I notice a lot of logs around Byte Array on transitions.
In the default configuration, are the event classes cached? It looks like it
reassembles them per transition. Additionally, it doesnt do this with a
subselect or join pattern, which seems to leads to n+1 selects.
Is there a way to
I enabled cache for ByteArray:
| class-cache class=org.jbpm.bytes.ByteArray usage=transactional /
|
Was this an oversight in the 3.3.1GA deployment, or was there an intentional
reason for not caching bytearray?
Thanks
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In theory, another option would be to have the task node have create-task to
false. Then have an action handler in the task note to create many task
instances, populating each within a different actorId.
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Here is the exception that comes up when the server starts:
| 08:30:43,109 ERROR [LogInterceptor] EJBException in method: public abstract
void javax.ejb.TimedObject.ejbTimeout(javax.ejb.Timer)
| :
| javax.ejb.NoSuchObjectLocalException: failed to retrieve command service
home
|
Grab it off of the graph session as shown below:
|
JbpmConfiguration.getInstance().createJbpmContext().getGraphSession().findAllProcessDefinitions();
|
Then just run over the definitions calling getName.
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I havent received this issue with 4.2.3GA, JBPM 3.3.1GA, and Oracle.
What does your datasource look like? What do you have for your
conf/login-config.xml?
What version of the Oracle thin driver are you using? What version of Oracle?
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What is the ideal way to bind to timers? When I have the following
configuration for scheduler:
| service name=scheduler
| factory
| bean
name=org.jbpm.scheduler.ejbtimer.EntitySchedulerServiceFactory
What type of caching are you using with jboss?
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I mean, what type of caching are you using with Hibernate?
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Josh,
I have been using the pattern of EJB Stateless beans for the business layer.
In that business layer, I will persist to whatever datastore I need, and make
my calls to jBPM as well.
The EJB Stateless Session Bean methods are wrapped with Container Managed
transactions or Bean Managed
I dont know the direct answer, but you could definitely figure this out by
starting with your jsf console and working backwards.
Try starting with:
jbpm\jsf-console.war\app\procins.xhtml
I believe in the jsf console, this is what renders the process. Work back from
there.
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As a follow up to this question, I would be interested in knowing if turning
clustering on for the jBPM queues would be appropriate here.
Thoughts?
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If you wanted to start somewhere for this, I would first understand Hibernate
queries. The Task Management Session uses Hibrernate to make this query.
So, here is the Hibernate Query they use to get tasks for a given user:
| select ti
| from org.jbpm.taskmgmt.exe.TaskInstance as ti
You could probably accomplish this with a timer on the task creation event.
Put an action in the timer, and basically set it to however long until it
expires.
Then, have the action in the timer be responsible for closing the task and
pushing the workflow.
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Well, I dont know if that is the cause, but ultimately you are missing the
class definition for the exception being thrown... judging by the stack trace.
See: http://www.jarfinder.com/index.php/java/info/javax.jcr.RepositoryException
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Use the TaskMgmtSession. Search for that in the documentation.
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You are using a container mangaged transaction in your hibernate configuration.
This is why its expecting one to be open when you perform jbpm. Change:
hibernate.transaction.factory_class =
org.hibernate.transaction.CMTTransactionFactory
See: http://www.hibernate.org/42.html
View
I am not sure about your configuration, but the internals of getGraphSession as
as follows:
| public GraphSession getGraphSession()
| {
| PersistenceService persistenceService = getPersistenceService();
| return (persistenceService != null ?
The log table is basically an audit table. If you dont need auditing in your
application, you could just turn it off by unconfiguring the logging service
from jbpm.cfg.xml.
Comment out:
| service name='logging'
factory='org.jbpm.logging.db.DbLoggingServiceFactory' /
|
|
Another
You get this because of the GWT console. When you install jbpm, GWT console is
optional. Since it really isnt ready for prime time, I would opt to use the
standard jsf-console. Optionally since you already have it installed, you
could just remove the gwt pieces within jbpm folder of deploy.
@apdo, were you able to get this working? I am also getting the same exception.
| java.lang.ClassCastException: org.jbpm.JbpmConfiguration cannot be cast to
org.jbpm.JbpmConfiguration
|
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I am using JBoss 4.2.3 GA, and JBPM 3.3.1 GA. I am looking for documentation
on integrating with the jbpm installation.
I notice that there is a BPMContextService in jbpm/jbpm-integration. What is
this for? Is there a way to get the JbpmContext that is configured in
jbpm-service, without
Is there an out of the box service to register the jbpm configuration?
Thanks,
Brad
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JBPM 3.3.1 does not seem to pass execution to the configured assignment handler
delegate. Can someone please validate my configuration below?
In the database, I see that the column ASSIGNMENTDELEGATION_ does have an
entry, but in my logs, I get:
| 2009-02-20 12:55:35,703 DEBUG
I dont have an answer for this directly.
But as far as saving db space, you are best served cleaning out the jbpm log
tables. I am not sure if you are using the log module, but it can become
really large.
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Are the transitions or nodes asynchronous? If so, make sure that your queues
backing up the jms are also clustered.
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I see in the jbpm codebase and tests there is a milestone node. However, the
Graphical Process Designer does not seem to recognize the node.
Is milestone a supported feature?
Thanks,
Brad
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I have a pattern I am trying to use to asynchronously signal a process to
continue. Unfortunately, because I need to do this between clusters and to a
particular queue, I am not able to leverage the async attribute in this case.
So, I am trying to figure out how to reference a token, and
I have two ears, and several clusters at my environment.
We have the following scenario:
JBPM is used in two EARs, and we are upgrading from 3.1 to 3.2.3.
The EARs can be deployed on the same cluster, the same node of a given cluster,
or in two separate clusters.
We would like to take
*Enterprise
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