+1
.V
Joe Germuska wrote:
At 2:07 PM -0400 2002/10/23, Seth Milder wrote:
I am designing a webapp using Struts and I would like to include with
every ActionForm class an inner servlet class that queries a DB to get
config info for the outer class. I would then use this information in
the validate() routine to determine which fields should be validated
and which should not be (it will basically be a list of required
fields for a given webapp). The trouble is that when I try to call the
servlet I get a stack trace (see below). Is there a better way of
doing this with Struts? Is a servlet in an inner class impossible?
whoa -- that's twisted! I don't know if the Servlet spec supports inner
classes as servlets, but the design intentions of Struts are for the
ActionForm classes to be relatively stupid objects used to push data
around.
Why not just have your Action class do the database stuff? There's no
strict reason why you need to validate action forms with the validate()
method; it's just a convenience.
If you want your actions to be able to deal with multiple forms for some
reason, you could write a Struts PlugIn that puts itself into the
ServletContext at initialization time, and then is available to all of
your actions to validate the ActionForms.
Is there a strong reason to have the validation rules in a database
instead of in an XML file? Have you checked out the Validator system?
There's got to be a less tangled way to achieve your ends...
Joe
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