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The submit behavior can be customized by overriding one of the onSubmit methods. Submit actions can also perform custom validation if necessary (typically database-driven checks), calling showForm in case of validation errors to show the form view again.
This is what I want to do. Please note: I have a validator linked to the form which I want to deal with "plain data" validation only. I don't want to do the database-driven validation there.
As of Spring 2.0, this is a special-purpose class. Normally, application code will work with the BindingResult interface, or with a DataBinder that in turn exposes a BindingResult via DataBinder.getBindingResult().
So, can someone please tell me what I need to do, or how I can perform my database-backed validation?
EDIT: the onSubmit receives the a BindException object called errors! I really apologise for the post!!