[JBoss jBPM] - Re: jbpm 3.2 Session Is Closed exception in JobSession
by akrachev
Hello,
One solution that worked for me is:
In components.xml
<persistence:hibernate-session-factory name="jbpmSessionFactory" />
<persistence:managed-hibernate-session name="jbpmSession"
auto-create="true"
scope="CONVERSATION"
session-factory="#{jbpmSessionFactory}" />
In hibernate.cfg.xml
<hibernate-configuration>
<session-factory name="java:/jbpmSessionFactory">
false
after_transaction
In jbpm.cfg.xml
<jbpm-context>
The Seam code that calls the Stateless Session bean facade over jBPM is
has appropriate @Begin @End annotations (to mark the Conversation)
In the jBPM Stateless Session Facade:
@In JbpmContext jbpmContext;
@In(value="jbpmSession")
Session session;
...
public void startProcess(String processName, String key) {
jbpmContext.setSession(session);
_________________
Hope this will help you,
Atanas Krachev
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18 years, 2 months
[JBoss jBPM] - Re: changing the database as Postgresql
by salaboy21
Hi!
it's really easy to do that..
if you are working with jbpm-enterprise.ear you must do the following:
Modify the jbpm-enterprise.ear/lib/jbpm-configs.jar/hibernate.cfg.xml file. You have 2 options here:
1) Use a DataSource, provided by JBoss, in this case you must create a data source with your postgre configuration, something like this:
jbpm-ds.xml (it must be called *-ds.xml in order to jboss recognize it *(deploy it) as a data source)
| <datasources>
| <local-tx-datasource>
| <jndi-name>JbpmDS</jndi-name>
| <connection-url>jdbc:postgresql://<ip>:5432/JBPM</connection-url>
| <driver-class>org.postgresql.Driver</driver-class>
| <user-name> <user> </user-name>
| <password> <password> </password>
| <!-- sql to call when connection is created. Can be anything, select 1 is valid for PostgreSQL
| <new-connection-sql>select 1</new-connection-sql>
| -->
|
| <!-- sql to call on an existing pooled connection when it is obtained from pool. Can be anything, select 1 is valid for PostgreSQL
| <check-valid-connection-sql>select 1</check-valid-connection-sql>
| -->
|
| <!-- corresponding type-mapping in the standardjbosscmp-jdbc.xml -->
| <metadata>
| <type-mapping>PostgreSQL 8.0</type-mapping>
| </metadata>
| </local-tx-datasource>
|
| </datasources>
|
And the you must place this file in your /deploy/ directory
2) provide hibernate.cfg.xml the right parameters to connect directly to de database:
| <!-- hibernate dialect -->
|
| <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
|
|
|
| <!-- JDBC connection properties (begin) ===
|
| <property name="hibernate.connection.driver_class">org.hsqldb.jdbcDriver</property>
|
| <property name="hibernate.connection.url">jdbc:hsqldb:mem:jbpm</property>
|
| <property name="hibernate.connection.username">sa</property>
|
| <property name="hibernate.connection.password"></property>
|
| ==== JDBC connection properties (end) -->
|
You must uncomment the previous tags and comment the following
<!-- DataSource properties (begin) -->
java:/JbpmDS
<!-- DataSource properties (end) -->
don't forget to change the hibernate dialect to:
| <property name="hibernate.dialect">org.hibernate.dialect.PostgreSQLDialect</property>
|
Hope it helps!!
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18 years, 2 months
[JBoss jBPM] - Re: workaround for StackOverflow exception
by vanyatka
anonymous wrote : Pure jBPM should work, or even in combination with Seam. Just configure jBPM to not participate in an already running transaction
It is kind of confusing to distinguish jBPM transactions from Seam + EJB3-JPA.
I thought jBPM doesn't meddle with application level transactions, only with it's own state persisting.
I've tried removing this line from jbpm.cfg.xml
<service name="tx" factory="org.jbpm.tx.TxServiceFactory" />
But get this exception
13:43:34,852 ERROR [Services] problem closing service 'persistence'
| org.jbpm.JbpmException: no jbpm tx service configured
| at org.jbpm.persistence.db.DbPersistenceService.isRollbackOnly(DbPersistenceService.java:395)
| at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:202)
| at org.jbpm.svc.Services.close(Services.java:225)
| at org.jbpm.JbpmContext.close(JbpmContext.java:139)
| at org.jboss.seam.bpm.Jbpm.installProcessDefinitions(Jbpm.java:262)
| at org.jboss.seam.bpm.Jbpm.startup(Jbpm.java:72)
| 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.seam.util.Reflections.invoke(Reflections.java:21)
| at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
| at org.jboss.seam.Component.callComponentMethod(Component.java:2092)
| at org.jboss.seam.Component.callCreateMethod(Component.java:2015)
| at org.jboss.seam.Component.newInstance(Component.java:1976)
| at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
| at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
| at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:95)
| at org.jboss.seam.init.Initialization.init(Initialization.java:596)
| at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
| at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3856)
| at org.apache.catalina.core.StandardContext.start(StandardContext.java:4361)
| at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:790)
| at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:770)
| at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553)
| 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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
| at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.apache.catalina.core.StandardContext.init(StandardContext.java:5312)
| 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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
| at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.web.tomcat.service.TomcatDeployer.performDeployInternal(TomcatDeployer.java:301)
| at org.jboss.web.tomcat.service.TomcatDeployer.performDeploy(TomcatDeployer.java:104)
| at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:375)
| at org.jboss.web.WebModule.startModule(WebModule.java:83)
| at org.jboss.web.WebModule.startService(WebModule.java:61)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor1376.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
| at $Proxy0.start(Unknown Source)
| at org.jboss.system.ServiceController.start(ServiceController.java:417)
| at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy194.start(Unknown Source)
| at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466)
| at sun.reflect.GeneratedMethodAccessor147.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
| at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
| at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
| at org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
| at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
| at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
| 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:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy195.start(Unknown Source)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
| at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
| 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:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy9.deploy(Unknown Source)
| at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
| at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:610)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)
| 13:43:34,855 ERROR [[/BannerChainSeamNew]] Exception sending context initialized event to listener instance of class org.jboss.seam.servlet.SeamListener
| org.jboss.seam.InstantiationException: Could not instantiate Seam component: org.jboss.seam.bpm.jbpm
| at org.jboss.seam.Component.newInstance(Component.java:1986)
| at org.jboss.seam.contexts.Contexts.startup(Contexts.java:304)
| at org.jboss.seam.contexts.Contexts.startup(Contexts.java:278)
| at org.jboss.seam.contexts.ServletLifecycle.endInitialization(ServletLifecycle.java:95)
| at org.jboss.seam.init.Initialization.init(Initialization.java:596)
| at org.jboss.seam.servlet.SeamListener.contextInitialized(SeamListener.java:34)
| at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:3856)
| at org.apache.catalina.core.StandardContext.start(StandardContext.java:4361)
| at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:790)
| at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:770)
| at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:553)
| 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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
| at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.apache.catalina.core.StandardContext.init(StandardContext.java:5312)
| 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.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:296)
| at org.jboss.mx.server.RawDynamicInvoker.invoke(RawDynamicInvoker.java:164)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.web.tomcat.service.TomcatDeployer.performDeployInternal(TomcatDeployer.java:301)
| at org.jboss.web.tomcat.service.TomcatDeployer.performDeploy(TomcatDeployer.java:104)
| at org.jboss.web.AbstractWebDeployer.start(AbstractWebDeployer.java:375)
| at org.jboss.web.WebModule.startModule(WebModule.java:83)
| at org.jboss.web.WebModule.startService(WebModule.java:61)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalStart(ServiceMBeanSupport.java:289)
| at org.jboss.system.ServiceMBeanSupport.jbossInternalLifecycle(ServiceMBeanSupport.java:245)
| at sun.reflect.GeneratedMethodAccessor1376.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.system.ServiceController$ServiceProxy.invoke(ServiceController.java:978)
| at $Proxy0.start(Unknown Source)
| at org.jboss.system.ServiceController.start(ServiceController.java:417)
| at sun.reflect.GeneratedMethodAccessor9.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:86)
| at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:264)
| at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy194.start(Unknown Source)
| at org.jboss.web.AbstractWebContainer.start(AbstractWebContainer.java:466)
| at sun.reflect.GeneratedMethodAccessor147.invoke(Unknown Source)
| at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
| at java.lang.reflect.Method.invoke(Method.java:597)
| at org.jboss.mx.interceptor.ReflectedDispatcher.invoke(ReflectedDispatcher.java:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
| at org.jboss.mx.interceptor.DynamicInterceptor.invoke(DynamicInterceptor.java:97)
| at org.jboss.system.InterceptorServiceMBeanSupport.invokeNext(InterceptorServiceMBeanSupport.java:238)
| at org.jboss.wsf.container.jboss42.DeployerInterceptor.start(DeployerInterceptor.java:87)
| at org.jboss.deployment.SubDeployerInterceptorSupport$XMBeanInterceptor.start(SubDeployerInterceptorSupport.java:188)
| at org.jboss.deployment.SubDeployerInterceptor.invoke(SubDeployerInterceptor.java:95)
| 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:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy195.start(Unknown Source)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1025)
| at org.jboss.deployment.MainDeployer.start(MainDeployer.java:1015)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:819)
| at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:782)
| at sun.reflect.GeneratedMethodAccessor27.invoke(Unknown Source)
| 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:155)
| at org.jboss.mx.server.Invocation.dispatch(Invocation.java:94)
| at org.jboss.mx.interceptor.AbstractInterceptor.invoke(AbstractInterceptor.java:133)
| at org.jboss.mx.server.Invocation.invoke(Invocation.java:88)
| at org.jboss.mx.interceptor.ModelMBeanOperationInterceptor.invoke(ModelMBeanOperationInterceptor.java:142)
| 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:659)
| at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:210)
| at $Proxy9.deploy(Unknown Source)
| at org.jboss.deployment.scanner.URLDeploymentScanner.deploy(URLDeploymentScanner.java:421)
| at org.jboss.deployment.scanner.URLDeploymentScanner.scan(URLDeploymentScanner.java:610)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.doScan(AbstractDeploymentScanner.java:263)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.loop(AbstractDeploymentScanner.java:274)
| at org.jboss.deployment.scanner.AbstractDeploymentScanner$ScannerThread.run(AbstractDeploymentScanner.java:225)
| Caused by: org.jbpm.JbpmException: problem closing services {persistence=org.jbpm.JbpmException: no jbpm tx service configured}
| at org.jbpm.svc.Services.close(Services.java:245)
| at org.jbpm.JbpmContext.close(JbpmContext.java:139)
| at org.jboss.seam.bpm.Jbpm.installProcessDefinitions(Jbpm.java:262)
| at org.jboss.seam.bpm.Jbpm.startup(Jbpm.java:72)
| 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.seam.util.Reflections.invoke(Reflections.java:21)
| at org.jboss.seam.util.Reflections.invokeAndWrap(Reflections.java:125)
| at org.jboss.seam.Component.callComponentMethod(Component.java:2092)
| at org.jboss.seam.Component.callCreateMethod(Component.java:2015)
| at org.jboss.seam.Component.newInstance(Component.java:1976)
| ... 94 more
| Caused by: org.jbpm.JbpmException: no jbpm tx service configured
| at org.jbpm.persistence.db.DbPersistenceService.isRollbackOnly(DbPersistenceService.java:395)
| at org.jbpm.persistence.db.DbPersistenceService.close(DbPersistenceService.java:202)
| at org.jbpm.svc.Services.close(Services.java:225)
| ... 106 more
|
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18 years, 2 months
[JBoss jBPM] - Re: Task Node Question - How to end blocking tasks
by steve.j.hall＠tektronix.com
After some additonal effort, I did get this to work.
Users who are new to JBPM and have some database background can discern quite alot by looking at the database tables. In my case, this helped me find that I had two task instances: one in my model and one that I had been creating in code. Removing one of them was the first step in solving my problem.
Next, while we can step through nodes using RootToken.signal(), this does not seem to step us through the tasks in a task node. When working with tasks in a task node, it seems that it's best to use taskInstance.start() and taskInstance.end().
Finally, when working with blocking tasks in a task node named foo, it seems that one must get an instance of the task and use setBlocking(false) to avoid getting an IllegalStateException: task-node 'foo' still has blocking tasks when attempting to exit task node foo. This seems a bit weird to me, since it seems to imply that I am changing the model. I would have thought that starting and ending the task would have been adequate to allow movement through the graph. But, setting blocking to false was the only way I found to allow graph execution to proceed.
If anyone has other ideas, I would like to hear them.
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18 years, 2 months