writing data to a model
I'm trying to retrieve the data from a display field and write it to a model so
that the page I forward to can then retreive this data from the model and
display it in some static text fields which are bound to the model. Note that
the forwarding page (the first one) is not bound to the model for any of its
fields since they're pure input fields from the user. Note, also, that the
model
is stored in the session through the ModelManager class.
I have getters and setters in the model. It seems that I can't just use a
setter
method from my first page because then when I retrieve this data, I get a null
pointer exception and the page doesn't render any more.
What is the proper way to do this and do you have any code examples?
Thanks.
Belinda
[871 byte] By [
Guest] at [2007-11-25 9:29:00]
Belinda--
> I'm trying to retrieve the data from a display field and write it
to a model so
> that the page I forward to can then retreive this data from the
model and
> display it in some static text fields which are bound to the model.
Note that
> the forwarding page (the first one) is not bound to the model for
any of its
> fields since they're pure input fields from the user. Note, also,
that the model
> is stored in the session through the ModelManager class.
What version of JATO are you using? There is a bug with asking the
ModelManager to put models in session in JATO 1.1.
> I have getters and setters in the model. It seems that I can't just
use a setter
> method from my first page because then when I retrieve this data, I
get a null
> pointer exception and the page doesn't render any more.
This should be a fine technique. This may be related to the session
bug I mentioned above, or maybe some other confusion of model
instances. Some other questions: how are your setters storing values
in the model? What superclass does your model derive from?
Todd
Guest at 2007-7-1 16:34:48 >
