best data validators?

Hi Everyone,

  What are the best data validation projects out there? I looked on
Sourceforge to little avail. I thought someone would have defined like
100-200 business data types and have validation for each of them. For
instance, a VIN follows a well-defined set of requirements and can be cross
validated with the make, model and year. Etc.

  I've looked at Apache's data validation project but am unimpressed. I wish
Apache would put their projects on Sourceforge. Apache Validation has a
limited (<15) set of business data types and provides only basic validation.
It has no architecture WRT format validation, content validation, cross
validation, and validation services. It also mixes Java code for validation
for some data types with XML scripting for others. Its really irritating
because I also also expected corresponding JavaScript validation for each
data type. I guess they think one can load the XML for validation in a web
browser but I haven't dug any deeper.

Thanks,
TimJowers

P.S> Thanks for everyone's feedback on O-R Mapping and Code generators. The
JBoss Seam project was easy to use. I was able to create a basic web gui
within two hours of downloading JBoss and Seam. NetBeans provides a
drag-n-drop GUI builder. Both support JSF. NetBeans also supports JavaScript
frameworks like DOJO and jMaki in addition to WYSIWIG Swing. Seam will
generate JSF code right from a database. NetBeans, AFAICT, requires a drag
and drop for each table. Both seem to give a tag soup but I guess that's
state of the art in Java to Web development. Both seem to genrate code based
on a table and have no special techniques for related tables. Now I'll try
out Seam on a real database with 300 tables and many which are not
normalized. Ought to be fun, NOT!
Apache Commons Validator: http://commons.apache.org/validator/
db2app: http://sourceforge.net/projects/db2app
JBoss Seam: http://www.jboss.com/products/seam,
http://www.serviza.com/lifetype/index.php?op=ViewArticle&articleId=15&blogId=1
NetBeans: http://www.netbeans.org/downloads/

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