Hi Simon,
Thank you for the detailed clarification.
I add the below constructor to Appointment bean so that the commentItemMap
is initialiased.
*public* HaAppointment() {
CommentItem item=*new* CommentItem();
commentItemMap.put("Cancellation Reason", item);
}
Still I am getting the following error :
com.sun.faces.lifecycle.ProcessValidationsPhase execute Error testing
property 'commenttext' in bean of type null
*javax.faces.el.PropertyNotFoundException*: Error testing property
'commenttext' in bean of type null
Can you suggest an option to resolve this issue ?
Regards
Ayub
On Thu, Oct 30, 2008 at 4:59 PM, Simon Kitching <[EMAIL PROTECTED]>wrote:
> Ayub Khan schrieb:
> > Hi,
> >
> > I am having a small issue, I am getting
> >
> > Error testing property 'commenttext' in bean of type null error
> > message. I googled and did lot of troubleshooting, however unable to
> > resolve it.
> >
> > I have a managed bean AppointmentBean which has a Map of comments
> >
> > Appointment{
> >
> > private Map commentitemMap=new HashMap();
> >
> > *
> >
> > public
> >
> > * Map getCommentItemMap() { *return* *this*.commentItemMap;
> >
> > }
> >
> > *public* *void* setCommentItemMap(Map commentItemMap) {
> > *this*.commentItemMap = commentItemMap;
> >
> > }
> >
> > }
> >
> > in my jsp I have bound the text area to
> > appointment.commentItemMap['Cancellation Reason'].commenttext
> >
> > CommentItem {
> >
> > *private* String commenttext="";*
> >
> > public
> >
> > * String getCommenttext() { *return* *this*.commenttext;
> >
> > }
> >
> > *public* *void* setCommenttext(String commenttext) {
> > *this*.commenttext = commenttext;
> >
> > }
> >
> > }
> >
> >
> >
> > In my action method I am setting the commentItem value as below:
> >
> > CommentItem item=
> >
> > *new* CommentItem();
> >
> > comentMap.put(
> >
> > "Cancellation Reason",item);
> >
> > appointment.setCommentItemMap(comentMap);
> >
> >
> >
> > when the form is submitted, I read
> >
> > Error testing property 'commenttext' in bean of type null error message.
> >
> > In the facesConfig.xml I have declared both appointments bean and
> > CommentItem as managed beans in session scope.
> >
> > If I use appointment.commentItemMap['Cancellation Reason'] without the
> > .commenttext , the full classpath of CommentItem is being displayed in
> > the text area (I assume its the object.toString value here ).
> >
> > Please let me know where I am doing wrong.
> >
> When the form is submitted, the posted form-content will include a value
> for the "commenttext" html field (this value will be an empty string if
> you typed nothing in that field in the html page). During the "update
> model" phase, JSF will therefore try to store that value using the EL
> expression
> #{appointment.commentItemMap['Cancellation Reason'].commenttext}
> so it
> (a) fetches the appointment bean (ok)
> (b) calls getCommentItemMap --> returns an *empty* map
> (c) calls map.get('Cancellation Reason') --> returns null
> (d) tries to call getCommenttext on the null pointer --> error
>
> Only *after* the model-update phase will it try to run the "action"
> method associated with whatever button was pressed. So it is too late at
> that point to try to add an object to your commentItemMap with key
> 'Cancellation Reason'; processing has already tried to access the
> nonexistent object earlier.
>
> Regards,
> Simon
>
> --
> -- Emails in "mixed" posting style will be ignored
> -- (http://en.wikipedia.org/wiki/Posting_style)
>
>
--
-- "Two roads diverged in a wood
And I took the one less traveled by
And that has made all the difference.
Robert Frost....."
