Comments on: jBPM 4.0: basic taskform tutorial (what’s new – part 4)

By: Hi

Hi — Mon, 19 Jul 2010 05:06:37 +0000

Hi,

Is the free marker form designer template based ?

I am trying to use jbpm4 for form designing. I have installed jbpm 4.3 on linux with Jboss5.1. I have also installed gpd on eclipse-jee-galileo 3.5.

I want a drag and drop type form designing but i am not getting any such provision.

Have i missed anything or form designing can only be done by coding?

Thanks

By: Jesus

Jesus — Tue, 23 Feb 2010 21:44:17 +0000

Hello.
Where can I get the command “jbpm / CommandExecutor” that appears in the source code example?
Or is there some other tutorial which explains the treatment dearchivos FTL?
Thanks

By: Rajeshwari

Rajeshwari — Mon, 25 Jan 2010 10:58:23 +0000

Can you let me know how to start a process instance remotely? We are using JBPM v 4.3 and I could not locate any documentation about starting an instance remotely.

By: Joram

Joram — Tue, 12 Jan 2010 12:49:13 +0000

@Jiemin: no, not like in JSF anyway. What you could do however is attach an event to the outgoing transition that follows by clicking the button

By: Jiemin

Jiemin — Mon, 11 Jan 2010 11:59:20 +0000

Hello Joram

Thanks a lot for your answer.

Is it possible to implement a event on clicking any button in a taskform?

Greetings

By: Joram

Joram — Mon, 28 Dec 2009 12:12:31 +0000

@Mauricio: Which version of jBPM are you using? Te stacktrace throws an exception at a line which doesn’t exist annymore.

By: Mauricio

Mauricio — Sun, 27 Dec 2009 17:29:25 +0000

Hi Joram

First, congratulations for your excelent site. I’m new using jbpm4 and I’m studying jbpm4 based on your posts.

Now I try to run this sample but I don’t use jboss as application server for jbpm4 and I tried to use tomcat.

I have all files to run the vacations sample and I wrote this file for upload:

package demo2;

import org.jbpm.api.Configuration;
import org.jbpm.api.NewDeployment;
import org.jbpm.api.ProcessEngine;
import org.jbpm.api.RepositoryService;

public class Config {

public static void main(String argv[]){

ProcessEngine processEngine = new Configuration().setResource(“jbpm.cfg.xml”).buildProcessEngine();

RepositoryService repositoryService = processEngine.getRepositoryService();

NewDeployment newDeployment = repositoryService.createDeployment();
newDeployment.addResourceFromClasspath(“demo2/hola.ftl”);
newDeployment.addResourceFromClasspath(“demo2/vacas.jpdl.xml”);

String salida = newDeployment.deploy();
System.out.println(“salida….: “+salida);
}

}

when I run this, output is:

27-dic-2009 14:25:47 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– beginning hibernate tx 4102111 ——————————————————–
27-dic-2009 14:25:47 org.jbpm.pvm.internal.cmd.CheckDbCmd main
[INFO]: jBPM version info: library[4.2], schema[null]
27-dic-2009 14:25:47 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– committing hibernate tx 14990140 ——————————————————-
27-dic-2009 14:25:47 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– beginning hibernate tx 10140777 ——————————————————–
27-dic-2009 14:25:47 org.jbpm.pvm.internal.id.DatabaseDbidGenerator main
[DEBUG]: last id -2 was consumed. acquiring new block…
27-dic-2009 14:25:47 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– beginning hibernate tx 12626425 ——————————————————–
27-dic-2009 14:25:47 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– committing hibernate tx 15272259 ——————————————————-
27-dic-2009 14:25:47 org.jbpm.pvm.internal.id.DatabaseDbidGenerator main
[DEBUG]: acquired new id block [1-10000]
27-dic-2009 14:25:48 org.jbpm.pvm.internal.tx.HibernateSessionResource main
[DEBUG]: —– committing hibernate tx 26108059 ——————————————————-
salida….: 1

okey, my problem is when I try to view deployments on gwt console, I’ve got this:

* URL: ‘http://localhost:8080/gwt-console-server/rs/engine/deployments’
* Action: ‘org.jboss.bpm.console.client.engine.UpdateDeploymentsAction’
* Exception: ‘class com.google.gwt.http.client.RequestException’

HTTP 500:
Estado HTTP 500 -

type Informe de Excepción

mensaje

descripción El servidor encontró un error interno () que hizo que no pudiera rellenar este requerimiento.

excepción

org.jboss.resteasy.spi.UnhandledException: java.lang.NullPointerException
org.jboss.resteasy.core.SynchronousDispatcher.handleApplicationException(SynchronousDispatcher.java:319)
org.jboss.resteasy.core.SynchronousDispatcher.handleException(SynchronousDispatcher.java:230)
org.jboss.resteasy.core.SynchronousDispatcher.handleInvokerException(SynchronousDispatcher.java:206)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:360)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)

causa raíz

java.lang.NullPointerException
org.jbpm.integration.console.ModelAdaptor.adoptDeployment(ModelAdaptor.java:208)
org.jbpm.integration.console.ProcessEnginePluginImpl.getDeployments(ProcessEnginePluginImpl.java:54)
org.jboss.bpm.console.server.EngineFacade.getDeployments(EngineFacade.java:75)
sun.reflect.GeneratedMethodAccessor35.invoke(Unknown Source)
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
java.lang.reflect.Method.invoke(Method.java:597)
org.jboss.resteasy.core.MethodInjectorImpl.invoke(MethodInjectorImpl.java:117)
org.jboss.resteasy.core.ResourceMethod.invokeOnTarget(ResourceMethod.java:260)
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:232)
org.jboss.resteasy.core.ResourceMethod.invoke(ResourceMethod.java:166)
org.jboss.resteasy.core.DispatcherUtilities.getJaxrsResponse(DispatcherUtilities.java:142)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:356)
org.jboss.resteasy.core.SynchronousDispatcher.invoke(SynchronousDispatcher.java:173)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:93)
org.jboss.resteasy.plugins.server.servlet.HttpServletDispatcher.service(HttpServletDispatcher.java:68)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
org.jboss.bpm.console.server.util.GWTJsonFilter.doFilter(GWTJsonFilter.java:59)

nota La traza completa de la causa de este error se encuentra en los archivos de diario de Apache Tomcat/6.0.20.
Apache Tomcat/6.0.20

can you help me??

greetings

By: Joram

Joram — Tue, 15 Dec 2009 08:53:07 +0000

@jsvegas: I haven’t tested the code on 4.2 yet, so the cause can lie there. Instead of calling the remoteCommandExecutor, you can just configure a standalone ProcessEngine to go to the same database and deploy it through there. That will result in exactly the same functionality.

By: jsvegas

jsvegas — Thu, 10 Dec 2009 17:03:05 +0000

Hi,
first of all thanks for the helpful example!

The code is evident for me, but I always get the following error when I try to run it.
I tried finding an error for hours and installed the demo setup on 2 differnt pcs, but allways the same error. Hmm, one thing: I used the jBPM 4.2 setup. May this be the cause of the error??

Any help would be appreciated sooo much!!! Please!

10-Dez-2009 17:53:32 org.jnp.interfaces.TimedSocketFactory main
[DEBUG]: createSocket, hostAddr: localhost/127.0.0.1, port: 1099, localAddr: null, localPort: 0, timeout: 0
10-Dez-2009 17:53:32 org.jboss.remoting.transport.socket.MicroSocketClientInvoker main
[DEBUG]: SocketClientInvoker[1b8e059, socket://127.0.0.1:4446] setting enableTcpNoDelay to true
10-Dez-2009 17:53:32 org.jboss.remoting.transport.socket.MicroSocketClientInvoker main
[DEBUG]: SocketClientInvoker[1b8e059, socket://127.0.0.1:4446] constructed
10-Dez-2009 17:53:32 org.jboss.remoting.transport.socket.MicroSocketClientInvoker main
[DEBUG]: SocketClientInvoker[1b8e059, socket://127.0.0.1:4446] setting enableTcpNoDelay to true
10-Dez-2009 17:53:32 org.jboss.remoting.MicroRemoteClientInvoker main
[DEBUG]: SocketClientInvoker[1b8e059, socket://127.0.0.1:4446] connecting
10-Dez-2009 17:53:32 org.jboss.remoting.transport.socket.MicroSocketClientInvoker main
[DEBUG]: Creating semaphore with size 50
10-Dez-2009 17:53:32 org.jboss.remoting.MicroRemoteClientInvoker main
[DEBUG]: SocketClientInvoker[1b8e059, socket://127.0.0.1:4446] connected
10-Dez-2009 17:53:32 org.jboss.remoting.transport.socket.ClientSocketWrapper main
[DEBUG]: reset timeout: 0
Exception in thread “main” java.lang.IllegalStateException: Failed to find method for hash:893106003127215228 available={8594593460157411074=public abstract javax.ejb.EJBObject javax.ejb.Handle.getEJBObject() throws java.rmi.RemoteException, -2938908583525943695=public abstract java.lang.Object org.jbpm.enterprise.internal.ejb.RemoteCommandExecutor.execute(org.jbpm.api.cmd.Command) throws java.rmi.RemoteException, -7423251857241384719=public abstract void javax.ejb.EJBHome.remove(java.lang.Object) throws java.rmi.RemoteException,javax.ejb.RemoveException, -883843542736932254=public abstract java.lang.Object javax.ejb.EJBObject.getPrimaryKey() throws java.rmi.RemoteException, 7415355246179212884=public abstract boolean javax.ejb.EJBObject.isIdentical(javax.ejb.EJBObject) throws java.rmi.RemoteException, 4121927297169232143=public abstract void javax.ejb.EJBHome.remove(javax.ejb.Handle) throws java.rmi.RemoteException,javax.ejb.RemoveException, 4512095171315154818=public abstract javax.ejb.EJBHome javax.ejb.EJBObject.getEJBHome() throws java.rmi.RemoteException, -3260590760910195779=public abstract javax.ejb.Handle javax.ejb.EJBObject.getHandle() throws java.rmi.RemoteException, 6050892400105620910=public abstract org.jbpm.enterprise.internal.ejb.RemoteCommandExecutor org.jbpm.enterprise.internal.ejb.RemoteCommandExecutorHome.create() throws javax.ejb.CreateException,java.rmi.RemoteException, -1225864925247205563=public abstract void javax.ejb.EJBObject.remove() throws java.rmi.RemoteException,javax.ejb.RemoveException, 3781219857755091396=public abstract javax.ejb.EJBMetaData javax.ejb.EJBHome.getEJBMetaData() throws java.rmi.RemoteException, 8981122088959051067=public abstract javax.ejb.HomeHandle javax.ejb.EJBHome.getHomeHandle() throws java.rmi.RemoteException}
at org.jboss.invocation.MarshalledInvocation.getMethod(MarshalledInvocation.java:407)
at org.jboss.ejb.Container.invoke(Container.java:1027)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:157)
at org.jboss.mx.server.Invocation.dispatch(Invocation.java:96)
at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:668)
at org.jboss.invocation.unified.server.UnifiedInvoker.invoke(UnifiedInvoker.java:232)
at org.jboss.remoting.ServerInvoker.invoke(ServerInvoker.java:908)
at org.jboss.remoting.transport.socket.ServerThread.completeInvocation(ServerThread.java:742)
at org.jboss.remoting.transport.socket.ServerThread.processInvocation(ServerThread.java:695)
at org.jboss.remoting.transport.socket.ServerThread.dorun(ServerThread.java:549)
at org.jboss.remoting.transport.socket.ServerThread.run(ServerThread.java:230)
at org.jboss.remoting.MicroRemoteClientInvoker.invoke(MicroRemoteClientInvoker.java:206)
at org.jboss.remoting.Client.invoke(Client.java:1708)
at org.jboss.remoting.Client.invoke(Client.java:612)
at org.jboss.invocation.unified.interfaces.UnifiedInvokerProxy.invoke(UnifiedInvokerProxy.java:184)
at org.jboss.invocation.InvokerInterceptor.invokeInvoker(InvokerInterceptor.java:365)
at org.jboss.invocation.InvokerInterceptor.invoke(InvokerInterceptor.java:197)
at org.jboss.proxy.TransactionInterceptor.invoke(TransactionInterceptor.java:61)
at org.jboss.proxy.ejb.SecurityContextInterceptor.invoke(SecurityContextInterceptor.java:64)
at org.jboss.proxy.SecurityInterceptor.invoke(SecurityInterceptor.java:68)
at org.jboss.proxy.ejb.StatelessSessionInterceptor.invoke(StatelessSessionInterceptor.java:112)
at org.jboss.proxy.ClientContainer.invoke(ClientContainer.java:101)
at $Proxy1.execute(Unknown Source)
at be.jorambarrez.jbpm4.demo.taskform.Main.main(Main.java:21)

By: Joram

Joram — Wed, 09 Dec 2009 09:20:09 +0000

@RockerRocker: This is logically, since the form only makes sense in the console environment. If we would go down that path, we would need some Swing stuff or so … but that would bother more people than it would benefit others.

@Jeff Collins: Right, the URL changed to http://docs.jboss.com/jbpm/v4/userguide/html_single/#gettingstartedquickly , I’ll update the article

@Jiemin: currently you would have to do it by adding a separate activity before the task that fetches the data. Another, more elegant way is to add an event-listener to your task , where you fetch the data and add it to the process as variable.