how to get beans from view scope

Question

I want to ask if i place my managed bean in session scope, then it is stored in session\' Like if i have a bean like this

@ManagedBean
@SessionScoped
public          


        

Answer 1

They're stored in the view map as available by UIViewRoot#getViewMap():

Map<String, Object> viewMap = FacesContext.getCurrentInstance().getViewRoot().getViewMap();
ViewScopedBean viewScopedBean = (ViewScopedBean) viewMap.get("viewScopedBean");
// ...

Equivalently, you should be using the session map abstraction as well which is available by ExternalContext#getSessionMap() (you ultimately want to have zero javax.servlet import declarations throughout your JSF code):

Map<String, Object> sessionMap = FacesContext.getCurrentInstance().getExternalContext().getSessionMap();
SessionScopedBean sessionScopedBean = (SessionScopedBean) sessionMap.get("sessionScopedBean");
// ...

See also:

• Get JSF managed bean by name in any Servlet related class

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Unrelated to the concrete problem, this may not be the best way. Look at @ManagedProperty if possible.