@SessionScoped bean with @ViewScoped behaviour

Question

I'm experiencing strange behaviour with my session scoped bean. I used following imports and annotations to make it sessionscoped:

EDIT : more Code

    import javax.enterprise.context.SessionScoped;
    import javax.inject.Named;

    @Named
    @SessionScoped
    public class DetailsBean implements Serializable {

    private LinkedHashMap<String, String> folder;
    @Inject
    private ApplicationBean appBean;
    @Inject
    private UserBean userBean;

    @PostConstruct
    public void resolveID() {
    this.folder = new LinkedHashMap<String, String>();
    for (LinkedHashMap<String, String> tempfolder : appBean.getRepositoryContent()) {
        if (tempfolder.get("text:nodeid").equals(URLid)) {
            this.folder = tempfolder;
          }
        }
    }

Code Snippet of JSF page :

    <html xmlns="http://www.w3.org/1999/xhtml"
    xmlns:h="http://java.sun.com/jsf/html"
    xmlns:ui="http://java.sun.com/jsf/facelets"
    xmlns:f="http://java.sun.com/jsf/core"
    xmlns:rich="http://richfaces.org/rich">
    <f:metadata>
      <f:viewParam name="id" value="#{detailsBean.URLid}" required="true" requiredMessage="You must provide an Object Id"/>
      <f:event type="preRenderView" listener="#{detailsBean.resolveID}" />
    </f:metadata>
    <h:head>
      <title>Dataset #{detailsBean.name}</title>
    </h:head>
    <h:body>
     <h:form>
        <h:panelGrid columns="2" columnClasses="fixed-column">
            Name <h:inputText value="#{detailsBean.name}"
                              id="name" required="true"
                              requiredMessage="name required"/>
            <rich:message for="name" ajaxRendered="true"/>
        </h:panelGrid>
    </h:body>
    </h:form>
    </html>

Now when I click on a link in my jsf page such a DetailsBean gets instantiated. When I click on another link with different content the same bean is used because I am still within the same Session. Now the strange thing is that even though I created 2 different browser tabs they show different content even after refreshing the page. How can the same bean instance show different contents ? I thought normally only a @ViewScoped bean could achieve this ? Don't get me wrong I DO want them to show different content so @ViewScoped would be the right decision to use here but I just wonder how this is possible...

EDIT2 : When I use javax.faces.ViewScoped, above Code doesn't work anymore (I get java.io.NotSerializableException because of the LinkedHashMap then)

It shouldn't be possible, but if you have some logic going on in your backer that you're not aware of, then it is possible. Please post more code. — Catfish, Nov 13 '12 at 17:31
Ok I edited. The content on the jsf page uses the folder map and gets Strings from it. — nico1510, Nov 13 '12 at 17:47
Can you post the snippet of view code that uses this backing bean? — Catfish, Nov 13 '12 at 17:54
I did...But it seems that only the view isn't right. When I do changes on the details site, only the last loaded site is updated — nico1510, Nov 13 '12 at 18:07

score -1 · Answer 1 · answered Dec 07 '12 at 19:45

-1

I believe you have error in import line. import javax.enterprise.context.SessionScoped;. You should import annotations from javax.faces.bean.SessionScoped.

answered Dec 07 '12 at 19:45

piotrsPL

17
3

OP is managing bean by CDI `@Named`, not by JSF `@ManagedBean`. Even then, if the import was indeed wrong, it'd have defaulted to request scope and thus definitely not act like a view scoped one. – BalusC Dec 07 '12 at 19:49

@SessionScoped bean with @ViewScoped behaviour

1 Answers1