Rice Yeh wrote:
On Wed, Jan 21, 2009 at 6:42 AM, Ralph Rauscher
<[email protected] <mailto:[email protected]>>
wrote:
Hi,
I have a case where I have a really large form that would require
several sessions to be valid and I'd like to allow users to
persist their work (even if the form is invalid) and continue
working on it later.
As the cforms binding will throw all kinds of exceptions in this
case I thought about serializing the Form object using standard
Java object serialization.
So far Form and the classes it's derived from do not implement
Serializable, which would be easy to fix. I saw a remark though by
Sylvain where he mentions
/"a form contains its own data model, which can be serialized, but
also pointers to its definition, which is shared between form
instances and can contain arbitrary references to non-serializable
objects and components"
Just a little thinking to share when I studied cform before. I think
that it is a bad design to have cform having a reference to its
definition. Once a cform instance is instantiated, it should get rid
of its definition and is allowed to modify its structure for more
flexible manipulation.
I think that would help. Currently the reference to the definition will
be used for even the most basic operations though, like creating the SAX
fragments for field widgets - so it might be somewhat of a bigger task
to clear that up. Should we take this to the dev list?
/So, is it possible?
Thanks.
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Ralph Rauscher
blue elephant systems GmbH
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