If you are using JSF1.2, then I believe this will tell you whether this is a
return to an existing view (ie not the first render of a view):
FacesContext.getRenderKit().getResponseStateManager().isPostBack().
Regards, Simon
---- Andrew Robinson <[EMAIL PROTECTED]> schrieb:
> Not sure about a way with portlets, but this should work with a servlet
> environment:
>
> "POST".equals(((HttpServletRequest)FacesContext.getCurrentInstance().getExternalContext().getRequest()).getMethod())
>
> Note that all command* components post, so this will not tell you if the
> page is new or not.
>
> Another way is to store an attribute in the UIViewRoot during rendering. If
> it is present, it is the 2nd (or more) time that the page has been renderer,
> and if it is not set then it is the first.
>
> FacesContext.getCurrentInstance().getViewRoot().getAttributes().get("myproperty")
> != null
> ...
> FacesContext.getCurrentInstance().getViewRoot().getAttributes().put("myproperty",
> true)
>
> -Andrew
>
> On Jan 8, 2008 9:57 AM, Zheng, Xiahong <[EMAIL PROTECTED]> wrote:
>
> > Hi all,
> >
> > I have a form that is wired with a backing bean. On the initial loading,
> > I need to load the backing properties from the DB to be displayed on the
> > page, then persist into the DB on submission after user edited the form.
> >
> > I only want to preload the bean from DB on the initial form loading not
> > on the form submission. Is there a way for the backing bean to know
> > whether it is created as a result of initial request or a form submit so
> > it can act accordingly.
> >
> > Thanks,
> > Xiaohong
> >
