JBPM: task process id may not be null
Hi!
I resolved to strart a new thread because the previous was too confuse.
I´m working with JBPM and when I access a specific page I have to do litle system processing with values comes from a form. So I´m trying to do that with ajax request.
Here is a one case that exemplifies the problem.
the page.xml
<end-conversation/>
<param name="taskId"/>
<action execute="#{secondaryQuestionAction.startFillSecondaryQuestion}"/>the specific page, that contains a button that get the value from text area and add it in a data table
<rich:panel>
<f:facet name="header">#{messages['srprocess.fillsecondaryquestion.page.title']}</f:facet>
<h:outputText value="#{messages['srprocess.fillsecondaryquestion.page.description']}"/><br/>
<rich:spacer height="20px"/>
<s:decorate id="questaoSecundaria" template="/layout/edit.xhtml">
<ui:define name="label">#{messages['srprocess.fillsecondaryquestion.page.question']}</ui:define>
<h:inputTextarea cols="100" rows="5" value="#{secondaryQuestion.question}"/>
</s:decorate>
<a4j:commandButton value="#{messages['command.add']}"
actionListener="#{secondaryQuestionAction.addSecondaryQuestion}" reRender="tabelaQuestoes">
</a4j:commandButton>
<a4j:outputPanel id="tabelaQuestoes" rendered="#{secondaryQuestionAction.exibeTabelaQuestoes}">
<h:outputText value="#{messages['srprocess.fillsecondaryquestion.questionstable.description']}"/>
<rich:dataTable id="tableSecondaryQuestion" value="#{secondaryQuestionAction.secondaryQuestionList}" var="q">
<rich:column>
#{q.question}
</rich:column>
</rich:dataTable>
</a4j:outputPanel>
<div style="clear: both" />
</rich:panel>And finnaly, the bean
@Name("secondaryQuestionAction")
@Scope(ScopeType.PAGE)
public class SecondaryQuestionAction implements Serializable {
private static final long serialVersionUID = 8394705048656015853L;
@In
private StatusMessages statusMessages;
@In(required=false)
@Out(scope=ScopeType.BUSINESS_PROCESS, required=false)
protected SRProtocol srProtocol;
@In
private SecondaryQuestion secondaryQuestion;
private List<SecondaryQuestion> secondaryQuestionList;
private boolean exibeTabelaQuestoes;
public boolean isExibeTabelaQuestoes() {
return exibeTabelaQuestoes;
}
public void setExibeTabelaQuestoes(boolean exibeTabelaQuestoes) {
this.exibeTabelaQuestoes = exibeTabelaQuestoes;
}
public List<SecondaryQuestion> getSecondaryQuestionList() {
return secondaryQuestionList;
}
public void setSecondaryQuestionList(
List<SecondaryQuestion> secondaryQuestionList) {
this.secondaryQuestionList = secondaryQuestionList;
}
@BeginTask
public void startFillSecondaryQuestion() {
if (secondaryQuestionList == null) {
secondaryQuestionList = new ArrayList<SecondaryQuestion>();
}
statusMessages.addFromResourceBundle("task.initiated.message");
}
@EndTask
public String endFillSecondaryQuestion() {
if (srProtocol != null) {
srProtocol.setSecundaryQuestionList(secondaryQuestionList);
}
statusMessages.addFromResourceBundle("srprocess.fillsecondaryquestion.page.success");
return "/listarTarefas.xhtml";
}
public void addSecondaryQuestion(ActionEvent event) {
if (secondaryQuestion != null) {
secondaryQuestionList.add(secondaryQuestion);
secondaryQuestion = null;
}
}
}
When I press the button that call addSecondaryQuestion method, an exception is thrown with message
Caused by java.lang.IllegalStateException with message: "task/process id may not be null" org.jboss.seam.bpm.BusinessProcessInterceptor.getProcessOrTaskId(BusinessProcessInterceptor.java:161) org.jboss.seam.bpm.BusinessProcessInterceptor.beforeInvocation(BusinessProcessInterceptor.java:69) org.jboss.seam.bpm.BusinessProcessInterceptor.aroundInvoke(BusinessProcessInterceptor.java:45) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.core.MethodContextInterceptor.aroundInvoke(MethodContextInterceptor.java:44) org.jboss.seam.intercept.SeamInvocationContext.proceed(SeamInvocationContext.java:68) org.jboss.seam.intercept.RootInterceptor.invoke(RootInterceptor.java:107) org.jboss.seam.intercept.JavaBeanInterceptor.interceptInvocation(JavaBeanInterceptor.java:185) org.jboss.seam.intercept.JavaBeanInterceptor.invoke(JavaBeanInterceptor.java:103) br.ufrj.cos.ese.configuradorrs.session.researchQuestion.SecondaryQuestionAction_$$_javassist_seam_14.startFillSecondaryQuestion(SecondaryQuestionAction_$$_javassist_seam_14.java) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
I´m was wondering why the task Id was lost, even with PAGE scope. So, how can I solve this?
Thanks!
