Simple (and tricky) question on assigment

[boerse]

Hi

I have a node which i would like to be executed or by the previous user that started the process (previous), or by another guy. I'm trying to make a group in the processdefinition.xml and identity.db.xml: Here are they:

<identity>
 <user name="cookie monster" email="[e-mail]" password="crunchcrunch" />
 <user name="ernie" email="[e-mail]" password="canthereyoubert,theresabananainmyear" />
 <user name="bert" email="[e-mail]" password="ernie,theresabananainyourear" />
 <user name="grover" email="[e-mail]" password="mayday mayday" />
 <user name="peggy" email="[e-mail]" password="oink oink" />
 <group name="gname" type="gtype"/>
 <membership name="nmember" role="nrole" user="peggy" group="gname" />
 <membership name="nmember" role="nrole" user="ernie" group="gname" />
</identity>

processdefinition.xml

<task-node name="evaluate web order">
 <task>
 <assignment expression='previous--> group(gtype) --> member(nrole)' />
 <timer duedate="20 seconds" repeat="10 seconds">
 <action class="org.jbpm.websale.RemindActor">
 <swimlaneName>salesman</swimlaneName>
 </action>
 </timer>
 <controller>
 <variable name="item" access="read"/>
 <variable name="quantity" access="read"/>
 <variable name="address" access="read"/>
 <variable name="reference" access="read"/>
 <variable name="comment"/>
 </controller>
 </task>

and the error is that the system cannot resolve the names. Does anybody know how this could be done? I'm sure this question will be very useful not only for me but for all the ones that are "fighting" with the assignments.

N.B: I tried without the part member too, and it does not work at all. The only thing it does is with only "previous", but i need user "ernie" too!

12:25:29,719 DEBUG [Services] closing service 'logging': org.jbpm.logging.db.DbL
oggingService@157816a
12:25:29,719 DEBUG [Services] closing service 'authentication': org.jbpm.securit
y.authentication.DefaultAuthenticationService@1f16e6e
12:25:29,729 ERROR [[FacesServlet]] Servlet.service() for servlet FacesServlet t
hrew exception
javax.faces.FacesException: Error calling action method of component with id tas
kform:transitionButton
 at org.apache.myfaces.application.ActionListenerImpl.processAction(Actio
nListenerImpl.java:74)
 at javax.faces.component.UICommand.broadcast(UICommand.java:106)
 at javax.faces.component.UIViewRoot._broadcastForPhase(UIViewRoot.java:9
0)
 at javax.faces.component.UIViewRoot.processApplication(UIViewRoot.java:1
64)
 at org.apache.myfaces.lifecycle.LifecycleImpl.invokeApplication(Lifecycl
eImpl.java:271)
 at org.apache.myfaces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java
:86)
 at javax.faces.webapp.FacesServlet.service(FacesServlet.java:94)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:252)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
 at org.jbpm.webapp.filter.AuthenticationFilter.doFilter(AuthenticationFi
lter.java:55)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
 at org.jbpm.web.JbpmContextFilter.doFilter(JbpmContextFilter.java:83)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
 at org.jbpm.webapp.filter.LogFilter.doFilter(LogFilter.java:59)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
 at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFi
lter.java:81)
 at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(Appl
icationFilterChain.java:202)
 at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationF
ilterChain.java:173)
 at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperV
alve.java:213)
 at org.apache.catalina.core.StandardContextValve.invoke(StandardContextV
alve.java:178)
 at org.jboss.web.tomcat.security.CustomPrincipalValve.invoke(CustomPrinc
ipalValve.java:39)
 at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(Securit
yAssociationValve.java:159)
 at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValv
e.java:59)
 at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.j
ava:126)
 at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.j
ava:105)
 at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineVal
ve.java:107)
 at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.jav
a:148)
 at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java
:856)
 at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.proce
ssConnection(Http11Protocol.java:744)
 at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpo
int.java:527)
 at org.apache.tomcat.util.net.MasterSlaveWorkerThread.run(MasterSlaveWor
kerThread.java:112)
 at java.lang.Thread.run(Thread.java:534)
Caused by: javax.faces.el.EvaluationException: Exception while invoking expressi
on #{taskBean.saveAndClose}
 at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:153)
 at org.apache.myfaces.application.ActionListenerImpl.processAction(Actio
nListenerImpl.java:63)
 ... 34 more
Caused by: org.jbpm.graph.def.DelegationException
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:349)

 at org.jbpm.graph.def.GraphElement$$FastClassByCGLIB$$7a7d6aa6.invoke(<g
enerated>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.graph.def.ProcessDefinition$$EnhancerByCGLIB$$a8719597.raise
Exception(<generated>)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)

 at org.jbpm.graph.def.GraphElement$$FastClassByCGLIB$$7a7d6aa6.invoke(<g
enerated>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.graph.node.TaskNode$$EnhancerByCGLIB$$328093f1.raiseExceptio
n(<generated>)
 at org.jbpm.graph.def.GraphElement.raiseException(GraphElement.java:343)

 at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInst
ance.java:205)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance$$FastClassByCGLIB$$e1d53490.in
voke(<generated>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance$$EnhancerByCGLIB$$57e4e5dd.per
formAssignment(<generated>)
 at org.jbpm.taskmgmt.exe.TaskInstance.assign(TaskInstance.java:176)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance.createTaskInstance(TaskMgmtIns
tance.java:146)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance$$FastClassByCGLIB$$e1d53490.in
voke(<generated>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance$$EnhancerByCGLIB$$57e4e5dd.cre
ateTaskInstance(<generated>)
 at org.jbpm.graph.node.TaskNode.execute(TaskNode.java:167)
 at org.jbpm.graph.def.Node.enter(Node.java:315)
 at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated
>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$5bdffd27.enter(<generated>)

 at org.jbpm.graph.def.Transition.take(Transition.java:113)
 at org.jbpm.graph.def.Node.leave(Node.java:381)
 at org.jbpm.graph.node.StartState.leave(StartState.java:70)
 at org.jbpm.graph.def.Node$$FastClassByCGLIB$$d187eeda.invoke(<generated
>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.graph.def.Node$$EnhancerByCGLIB$$5bdffd27.leave(<generated>)

 at org.jbpm.graph.exe.Token.signal(Token.java:174)
 at org.jbpm.graph.exe.Token.signal(Token.java:123)
 at org.jbpm.graph.exe.Token$$FastClassByCGLIB$$74df1c6e.invoke(<generate
d>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.graph.exe.Token$$EnhancerByCGLIB$$ecb064bb.signal(<generated
>)
 at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:407)
 at org.jbpm.taskmgmt.exe.TaskInstance.end(TaskInstance.java:321)
 at org.jbpm.taskmgmt.exe.TaskInstance$$FastClassByCGLIB$$cb2c21af.invoke
(<generated>)
 at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:149)
 at org.hibernate.proxy.CGLIBLazyInitializer.intercept(CGLIBLazyInitializ
er.java:136)
 at org.jbpm.taskmgmt.exe.TaskInstance$$EnhancerByCGLIB$$499767c.end(<gen
erated>)
 at org.jbpm.webapp.bean.TaskBean.saveAndClose(TaskBean.java:178)
 at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
 at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.
java:39)
 at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAcces
sorImpl.java:25)
 at java.lang.reflect.Method.invoke(Method.java:324)
 at org.apache.myfaces.el.MethodBindingImpl.invoke(MethodBindingImpl.java
:129)
 ... 35 more
Caused by: org.jbpm.identity.assignment.ExpressionAssignmentException: couldn't
resolve assignment expression 'previous--> group(gtype) --> member(nrole)'
 at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(Expre
ssionAssignmentHandler.java:97)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignmentDelegation(Ta
skMgmtInstance.java:216)
 at org.jbpm.taskmgmt.exe.TaskMgmtInstance.performAssignment(TaskMgmtInst
ance.java:192)
 ... 76 more
Caused by: org.jbpm.identity.assignment.ExpressionAssignmentException: no groups
 for group-type 'gtype'
 at org.jbpm.identity.assignment.ExpressionAssignmentHandler.resolveNextT
erm(ExpressionAssignmentHandler.java:171)
 at org.jbpm.identity.assignment.ExpressionAssignmentHandler.assign(Expre
ssionAssignmentHandler.java:78)
 ... 78 more
12:25:32,554 DEBUG [JbpmContextInfo] creating jbpm context with service factorie
s '[message, scheduler, logging, persistence, authentication]'
12:25:32,554 DEBUG [JbpmContext] creating JbpmContext

[boerse]

Following with this post and with http://jboss.org/index.html?module=bb&op=viewtopic&t=76736 where is being informed about a possible bug in deploying the users in the memberships table, i inserted the values that it should have by hand and although the simple assignment did not work, (previous-->group(mygrouptype)-->member(mymember) it did worked when i assigned ONLY a user to the group in the form: group(mygroupname), i agree with other users i read in this forum, we are probably doing something wrong as what we try i'm sure it works ok, question is, where is our mistake... I keep on investigating and i'll tell you the results.