Hello Rainer,
anonymous wrote : you realy have divided your functionality so far that you
concurrent threads have NO knowledge
The threads do not have any knowledge of any jBPM stuff. They simply run what
ever they are asked to and when completed notifies the "waiting" thread that it
can signa
Hello Alex,
Sorry I got side traced on to another problem. I can get it to work as you
mentioned when I run it from command line. I have ./ in my class path and have
hibernate.cfg.xml in the working directory. This works. However, I cannot get
it to work if say I put the hibernate.cfg.xml in my
Hello,
I have a process definition that has a fork in it. I save the process instance
at each stage (after signalng at each node). When I retrieve it from the
database and try to obtain it's child token (well, really root token's
children), I get the following exception:
Exception in thread "m
Hello Rainer,
Another question regarding your comment
anonymous wrote : GraphSession has a lockProcessInstance() method that will
lock by way oh database
How can I use this method to do concurrent process instance persistence and
token.signal? Also, is the lock released once the update is perfo
Hello All,
Let me mention this again and as clearly as I can, I am trying to model an
existing process (application) pipeline using the JBPM. The input(s) to the
next stage (application) in pipeline is output from previous stage. There are
stages that requires multiple input(s) which are genera
Hello Rainer
| correct, you will not achieve true Java concurrency with a fork
|
Are their any plans to enable this? If so, do you roughly know when?
Thanks
Raj
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Thanks Rainer.
If the process instance persistence and token signal are both synchronized over
process instance, I will not achieve a truely parallel fork, right?
Raj
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Hello Rainer,
Here is how I understand the problem, see if I am correct.
I have one thread that is saving the process instance, which results in the
call to the saveLogs. The saveLogs traverses pi's log list using the iterator.
Meanwhile another thread calls token.signal(), which causes a new S
Hello Rainer,
I think I have the answer to my following question.
anonymous wrote : Does 'token.signal()' change process log list?
I have the fix and it works. Thanks
Raj
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h
Thanks Rainer,
I do understand that you are a busy man and many many thanks for you time.
The code in question implements parallel split. When process execution reaches
the split node, threads are created for running each token separately (the main
thread runs one of the token, the remanning n-
Hello Rainer
Do you mean locking on process instance in this method or everywhere the
process instance is used? Because my original code was doing just that, as
follows:
| public static void persistPI(ProcessInstance pi)
| throws Exception
| {
| synchronized(pi) {
| JbpmSe
Hello,
I have a method to persist process instance as follows
|
| public static synchronized void persistPI(Token token)
| throws Exception
| {
| ProcessInstance pi=token.getProcessInstance();
| JbpmSessionFactory factory = JbpmSessionFactory.getInstance();
| Jbpm
Hello Rainer,
The execution context is created as follows
| new ExecutionContext(processInstance.getRootToken());
|
Raj
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Forgot to mention that the code to persist process instance starts a
transaction, saves process instance and commits the transaction. So the signal
is outside of transaction. I do not think this should matter as I have seen
same problem when the signal is with in transaction.
Raj
View the ori
I am able to connect to hsql db using the hsqldb datamanager tool.
Raj
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Hello Rainer,
Thanks for you reply. I know we have been over this before. I am trying to test
with simple process definition and it does not work.
Here is my test process:
|
| http://jbpm.org/3/jpdl";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
| xsi:schemaLocation="http:/
okay so I commented out hibernate.connection.datasource=java:/DefaultDS and
that error went away, but now I am getting the following error Error obtaining
JbpmSession. Error=java.lang.RuntimeException: couldn't get the jbpm table names
| Exception in thread "main" java.lang.RuntimeException: co
Hello,
I am running hsql server on 'localhost:1701'. I have modified the
hibernate.cfg.xml in jbpm.sar.cfg.jar as
jdbc:hsqldb:hsql://localhost:1701;sql.enforce_strict_size=true
|
and the jbpm.sar.cfg.jar is the first thing in my classpath. However, I am
getting the following exception
log4j:W
Hello,
Few questions regarding the following remark.
anonymous wrote : Or look at 3.1alpha. afaik, there is functionality to suspend
and resume. It is alpha, so the code might not be finished.
Will this capability allow me to pause in middle of execution, save process
instance, exit the applica
Thanks for the reply. So, do you know if it is possible to configure hibernate
with a configuration file that is not bundled into a jar file? I glanced over
the hibernate documentation but didn't see any thing that tells otherwise.
Would you recommend using the hibernate Configuration object ins
Hello,
I have hsql db running on localhost at default port (1701). While trying to
create schema (
jbpmConfiguration.createSchema();) I am getting following exception:
Initializing c3p0 pool... [EMAIL PROTECTED] [ connectionPoolDataSource ->
[EMAIL PROTECTED] [ acquireIncrement -> 1, acquireRetr
Hello,
I am trying to understand how JBPM configuration works in the 3.1 (beta2). I am
using the parseInputStream method passing it jbpm.cfg.xml which has
|
in it. However, I am getting the following exception:
| org.hibernate.HibernateException: /home/myhome/hibernate.cfg.xml not found
Hello Elmo,
anonymous wrote : When you say stand-alone, are you referring to swing
applications?
No. I mean a command line java application. No GUI yet. Actually, these is what
we are trying to do. We need to run a set of programs in a given order. The
order in which the programs are executed
Hello,
Thanks for your input.
First of all, we are not using servlets or EJB in our application, atleast not
yet. The application is a standalone application that only executes the given
process definition. Having said that, how do you think I can solve this
problem. Is it possible to write a
Hello Almo
anonymous wrote : Are you referring to/calling another process inside the
action handler?
I am not referring or calling another process inside the action handler. The
action handler's main job is to save the process instance.
anonymous wrote : Are you modifying another process defin
Hello Elmo,
Again many thanks for you reply.
I did added the action to "node-enter" event but it did not changed any thing.
Let me try to elaborate on exactly what I am doing. I have a jBPM execution
engine that first adds a generic action handler to each transition. The action
handler prints
Hello Elmo,
First of all, thanks a lot for your reply. Here is the process definition.
|
| http://jbpm.org/3/jpdl";
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance";
| xsi:schemaLocation="http://jbpm.org/3/jpdl
http://jbpm.org/xsd/jpdl-3.0.xsd";
| name="dbexample">
|
Can any one out there help me PLEASE.
Raj
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---
Th
Hello All,
I have a action handler that does the following:
| JbpmSessionFactory factory = JbpmSessionFactory.getInstance();
| JbpmSession jbpmSession = factory.openJbpmSession();
| jbpmSession.beginTransaction();
| try
| {
| ProcessInstance pi=executionConte
Hello,
I am running eclipse 3.1. I am trying to install the eclipse IDE by following
the steps as mentioned in your install guide. Eclipse hangs for long time
before returning with an error that it cannot download
"org.jboss.ide.eclipse.jdt.j2ee.core_1.4.1.e31-jar15.jar" file. I have seen the
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