Question

I have a question about filling a Primafaces Output Label via Method Call. The method also required a parameter.

The Label looks like followed:

<p:dataTable id="answerToQuestionDialogTable" var="answer" value="#{allQuestionBean.answers}">
    <p:column headerText="Counts For this Answer">
        <p:outputLabel value="#{allQuestionBean.votingCounter}">
            <f:param name="id" value="#{answer.answerId}"/>
        </p:outputLabel>
    </p:column>
 </p:dataTable>

In my Backing Bean i have an Integer Field named “votingCounter” with the followed Getter:

public int getVotingCounter() {
        Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
        int answerID = Integer.parseInt(params.get("id"));

        return answeredDAO.getCountForAnswer(answerID);
    }

If I try to load the Site i get following LogOutput from my AppServer(Tomcat 6):

04.09.2012 04:30:47 com.sun.faces.context.PartialViewContextImpl$PhaseAwareVisitCallback visit
SCHWERWIEGEND: javax.el.ELException: /pages/allQuestion.xhtml @69,81 value="#{allQuestionBean.votingCounter}": Error reading 'votingCounter' on type bean.view.AllQuestionBean

Can anyone explain me why this won´t work and can give me a solution how I can call the method to fill the Label with Text?

Answer 1

Since you are going to bring all count answers for all answers anyway , why don’t you create a map and populate it in your @PostConstruct and access it the simple way , something like

<p:outputLabel value="#{AllQuestionBean.countForAnserMap[answer.answerId]}">