How to reset in jsf?

Question

I am using liferay and jsf. In my portlet I tried to reset after submitting page by setting new values to the backing bean. I got blank fields but when I refreshed the page, I got my old values again which I have submitted earlier and it submit again with old values.

I tried to get new viewroot but it also gave me same result.

public void reset(AjaxBehaviorEvent event){

    FacesContext context = FacesContext.getCurrentInstance();
    Application application = context.getApplication();
    ViewHandler viewHandler = application.getViewHandler();
    UIViewRoot viewRoot = viewHandler.createView(context, context
            .getViewRoot().getViewId());
    context.setViewRoot(viewRoot);
    context.renderResponse(); //Optional

    this.MyBean = new MyBean();
}

P.S. After submit I call this method as reset(null);

If your scope is viewScope then view must be reset on refreshing page. Please check if it is happening due to autofill entry of browser. And please recheck you managed bean scope. — Jitesh, Mar 24 '13 at 20:42

score 1 · Answer 1 · answered Feb 01 '13 at 11:32

1

If you want the bean to be reset after each request; in that case instead of using the function you can make use of the scope(s) provided by the jsf.

Using the bean in request scope

tutorial on bean scopes

answered Feb 01 '13 at 11:32

Mukul Goel

8,387
6
37
77

Thanks for ur reply. But I need the bean in viewscope for one more functionality. Is there not any way to reset viewscope bean. – Kush Sahu Feb 01 '13 at 11:35
@KushSahu : there is always a way, but not the one I know of. wait till BalusC see your question.. ;) :) – Mukul Goel Feb 01 '13 at 11:45
Yeah and I am trying to find out tht solution :) ;) – Kush Sahu Feb 01 '13 at 12:59

score 1 · Answer 2 · edited May 23 '17 at 11:50

1

It seems that the scope of your bean is neither request nor viewscope as you want it to be reset even before view is destroyed.

You can make use of ConversationScoped in CDI which will be created when you start the conversation and you can mark it to end by calling conversation.end().

How does JSF 2 ConversationScope work?

Alternatively , if you want to reset the View Scope bean then you can also do it by using below in your Ajax Event,

Map<String, Object> viewMap = FacesContext.getCurrentInstance().
                              getViewRoot().getViewMap();
viewMap.put("MyBean",new MyBean());

edited May 23 '17 at 11:50

Community

1
1

answered Mar 20 '13 at 17:44

Avinash Singh

3,421
2
20
21

Thanks for your reply I will try this and let you know. :) – Kush Sahu Mar 22 '13 at 06:05
This bean won't be container managed ,remember to call PostConstruct/init method of your bean as container will not call it for you. – Avinash Singh Mar 22 '13 at 15:27

score 0 · Answer 3 · answered Mar 26 '13 at 11:38

0

It's really that simple: Just annotate with @RequestScoped and a button:

@ManagedBean
@RequestScoped
public class MyBean{

public void resetEvent(ActionEvent actionEv) {
    }

}

answered Mar 26 '13 at 11:38

Arian

3,183
5
30
58

I need it in view scoped to get some values in other functionalities – Kush Sahu Mar 27 '13 at 20:12

score 0 · Accepted Answer · answered Mar 27 '13 at 20:30

It is not issue with refresh, but its the browser which sends previous submitted data. I found some solutions which are pretty good.

From BalusC blog POST-Redirect-GET pattern
From rohit salecha blog Liferay Refresh bug

Since I am using Liferay, I have to put only

<action-url-redirect>true</action-url-redirect>

in liferay-portlet.xml like this

<portlet>
<portlet-name>booksportlet</portlet-name>
<icon>/icon.png</icon>
<action-url-redirect>true</action-url-redirect>
<instanceable>false</instanceable>
</portlet>

So I chose this.

How to reset in jsf?

4 Answers4