jsf2 viewscoped managed bean initiated several times

Question

I have an issue with view scoped bean. I know it's common question but I didn't get right answer. I have a datatable that is responsible for showing search results upon user entered search some criteria. Here is xhtml:

<html   xmlns:h="http://java.sun.com/jsf/html"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns="http://www.w3.org/1999/xhtml"

    xmlns:p="http://primefaces.org/ui">


<h:panelGroup id ="adminReportLogList">

<p:dataTable value="#{adminLogView.lazyModelReport}" var="model" id="reportLogList" lazy="true" paginator="true" rows="20" paginatorAlwaysVisible="false" paginatorPosition="bottom" emptyMessage="emppty list" styleClass="dtable" style="table-layout: fixed; width: 100%"
             paginatorTemplate="{RowsPerPageDropdown} {FirstPageLink} {PreviousPageLink} {CurrentPageReport} {NextPageLink} {LastPageLink}" rowsPerPageTemplate="5,10,15,20">

    <p:column headerText="Report number" sortBy="#{model.reportNumber}">
        <h:outputText value="#{model.reportLogId}"/>
    </p:column>
    <p:column headerText="Report date" sortBy="#{model.reportDate}">
            <h:outputText value="#{model.reportDate}">
                <f:convertDateTime pattern="yyyy/MM/dd hh:mm:ss"/>
            </h:outputText>
    </p:column>
    <p:column headerText="Search date" sortBy="#{model.searchLogId.searchDate}">
        <h:outputText value="#{model.searchLogId.searchdate}">
                <f:convertDateTime pattern="yyyy/MM/dd hh:mm:ss"/>
            </h:outputText>
    </p:column>
    <p:column headerText="User name" sortBy="#{model.searchLogId.loginLogId.username}">
        <h:outputText value="#{model.searchLogId.loginLogId.username}"/>
    </p:column>
    <p:column headerText="Customer number" sortBy="#{model.customerId}">
        <h:outputText value="#{model.customerId.registernumber}"/>
    </p:column>
    <p:column headerText="Customer name" sortBy="#{model.customerId}">
        <h:outputText value="#{model.customerId.name}"/>
    </p:column>
</p:dataTable>

</h:panelGroup>
<br/>

// SEARCH PANEL
<p:panel>
    <h:panelGrid columns="3" styleClass="insGrid" id="reportLogSearchPanel">
        <h:outputText value="User: "/>
        <p:inputText id="reportLogSearchByUserName" value="#{adminLogView.searchUserName}">
            <p:watermark for="reportLogSearchByUserName" value ="Customer name"/>
        </p:inputText>
        <h:message for="reportLogSearchByUserName" id="msgReportLogSearchByUserName" styleClass="errorMessage"/>

        <h:outputText value="Customer id number: "/>
        <p:inputText id="reportLogSearchByCustomerName" value="#{adminLogView.searchCustomerName}">
            <p:watermark for="reportLogSearchByCustomerName" value="Customer id number"/>
        </p:inputText>
        <h:message for="reportLogSearchByCustomerName" id="msgReportLogSearchBySearchDate" styleClass="errorMessage"/>

        <h:outputText value="Report date "/>
        <p:inputText id="reportLogSearchByReportDate" value="#{adminLogView.searchReportDate}">
            <p:watermark for="reportLogSearchByReportDate" value="Report date YYYY/MM/DD"/>
        </p:inputText>
        <h:message for="reportLogSearchByReportDate" id="msgReportLogSearchByReportDate" styleClass="errorMessage"/>

        <h:panelGroup/>
        <h:commandButton value="Search" styleClass="btn" action="#{adminLogView.searchReport()}">
            <f:ajax render =":form:adminReportLogList :form:reportLogList" execute=":form:reportLogSearchPanel"/>
        </h:commandButton>

    </h:panelGrid>

</p:panel>

which is used in tag in another xhtml which is: /I think it's not cause in this case/

<ui:composition xmlns:ui="http://java.sun.com/jsf/facelets"
                template="./../templates/admin_main.xhtml"
                xmlns:h="http://java.sun.com/jsf/html"
                xmlns:f="http://java.sun.com/jsf/core"
                xmlns:p="http://primefaces.org/ui">

    <ui:define name="content">
        <h:panelGroup id="include">
        <ui:include src="#{adminLogView.page}.xhtml"/>
        </h:panelGroup>
    </ui:define>

</ui:composition>

Here is my bean

@Named(value = "adminLogView")
@ViewScoped
public class AdminLogView implements Serializable{
    @EJB
    private LogServiceLocal logService;
    private List<Reportlog> ReportLogList;

    String page = "reportLog";
    LazyDataModel<Reportlog> lazyModelReport;
    LazyDataModel<Loginlog>  lazyModelLogin;
    LazyDataModel<Searchlog> lazyModelSearch;

    String searchCustomerName;
    String searchUserName;
    String searchReportDate;


    @PostConstruct
    public void init(){

        this.lazyModelReport = new LazyReportLogDataModel(this.logService);
    }

    public void searchReport(){
        Map<String, String> filter = new HashMap<String, String>();
        if(this.searchCustomerName != null && !this.searchCustomerName.isEmpty())
            filter.put("customerName", this.searchCustomerName);
        if(this.searchReportDate != null && !this.searchReportDate.isEmpty())
            filter.put("reportDate", this.searchReportDate);
        if(this.searchUserName != null && !this.searchUserName.isEmpty())
            filter.put("userName", this.searchUserName);



        this.lazyModelReport.load(0, 30, null, SortOrder.UNSORTED, filter);

    }
}

When we navigate to a page above then @postConstruct method called multiple times, even with sessionScoped. Even when we click search Button in same view, bean is initialized again. Only RequestScope works fine. Is there I misunderstand or forgot. PS. Thanks in advance.

Karl Kildén Karl Kildén · Accepted Answer · 2013-02-16T22:04:35

Do you have the correct SessionScoped? javax.enterprise.context.SessionScoped

Do you have Myfaces CODI or any other adapter on the classpath? Otherwise @ViewScoped has undocumented behavior since it is a JSF-2 scope.

If you have the correct @SessionScoped the behavior noted is completely unknown problem for me at least.

Also:

@Named(value = "adminLogView")

the value you give here is what it would default to. Might as well skip setting value like that.

Good luck

jsf2 viewscoped managed bean initiated several times

2 Answers