Document types

Hi,

Has anyone used or written subclasses of the PlainDocument class? I'm
looking for Documenttypes
that allow only alphanumeric input with limited length, a valid date and
numeric input (with specified length and decimals)
So I'm looking for a "TextDocument","DateDocument" and "NumericDocument"
class. I would like to write these 
classes myself but don't have the time...

Hasn't IBM released some beans with this specific behaviour? (comparable to
DDS-field descriptions)

Any help would be appreciated




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Geert Van Landeghem
Reynders Etiketten
gvl@reynderseti.be (Office)
hydra@vt4.net (Home)
03/460.12.56 (Office)
0477/759.533 (GSM)

<<Give me
     the power to accept the things I cannot change,
     the courage to change the things I can change,
     the insight to tell the difference>>
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