I have another problem with transitions. I have a task-node with 2 transitions
"Accepter" and "Refuser". These transitions can be fired from two command
buttons in a JSF. These transitions go to nodes with Seam actions binded to
them. But when JBPM calls these actions, the processInstance I get with the @In
annotation is null ... Why is this processInstance null ?
Here is my JSF :
<h:dataTable value="#{taskInstanceList}" var="task" rendered="#{not empty
taskInstanceList}">
| <h:column>
| <f:facet name="header">
| <h:outputText value="Description"/>
| </f:facet>
| <h:outputText value="#{task.description}"/>
| </h:column>
| <h:column>
| <f:facet name="header">
| <h:outputText value="Effectuée le"/>
| </f:facet>
| <h:outputText
value="#{task.taskMgmtInstance.processInstance.start}">
| <f:convertDateTime type="date"/>
| </h:outputText>
| </h:column>
| <h:column>
| <s:button value="Accepter"
action="#{afficherMessageConsole.accepterDemande}" taskInstance="#{task}" />
| <s:button value="Refuser"
action="#{afficherMessageConsole.refuserDemande}" taskInstance="#{task}" />
| </h:column>
| </h:dataTable>
Here is my Java class :
public class AfficherMessageConsole {
|
| @In
| private ProcessInstance processInstance;
|
| @StartTask
| @EndTask (transition="Accepter")
| public String accepterDemande() throws Exception {
| return "validationDemandes";
| }
|
| @StartTask
| @EndTask (transition="Refuser")
| public String refuserDemande() throws Exception {
| return "validationDemandes";
| }
|
| public void demandeAcceptee() throws Exception {
| log("Demande acceptee !");
| processInstance.getRootToken().signal();
| }
|
| public void demandeRefusee() throws Exception {
| log("Demande refusee !");
| processInstance.getRootToken().signal();
| }
| }
And finally a part of the JPDL :
<task-node name="Avis de la RH">
| <task name="Validation de la RH">
| <assignment actor-id="#{actor.id}" />
| </task>
| <transition name="Refuser" to="Refus"></transition>
| <transition name="Accepter" to="Acceptation"></transition>
| </task-node>
| <node name="Refus">
| <action expression="#{afficherMessageConsole.demandeRefusee}" />
| <transition name="" to="End"></transition>
| </node>
| <node name="Acceptation">
| <transition to="End" />
| <action expression="#{afficherMessageConsole.demandeAcceptee}" />
| </node>
| <end-state name="End"></end-state>
|
I looked for samples in the source code, but there are no examples with nodes
(and it's a shame). I'm not sure I understood well how to integrate Seam and
JBPM, so feel free to tell me if I do something wrong !
Thanks in advance ;)
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