[Springframework-developer] purpose of code in Errors.rejectValue()

[John C. <joh...@sa...>]

I was wondering if someone, most likelly Rob, could tell me what the 
purpose of the String code parameter is in Errors.rejectValue(String 
field,String code,String message) method.

And like my previous email "Validation usage examples and questions" i 
am looking for further clarification and proposed usage of the 
validation and DataBinding techniques in the framework.

Thanks,
John