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All,

It's been a long time since I've posted, and I've got my eye on S2 for
some upcoming work that will share code with a non-web-based interface
so I'd like to re-use as much code as possible without tying myself to
the S2 API.

The issue is with field validation: I'd love to use an action which has
fields, etc. and possibly even a validate() method but I'd like to avoid
having a dependency on the S2 API. Is this possible?

I've been reading "Struts 2 in Action" which has a chapter on validation
(the "real" kind where you specify the validation separate from the code
rather than hard-coding it) but it looks like you have to at least
implement ValidationAware, which ties me to the S2 API (well, xwork, but
whatever...).

I'm wondering if it's a possibility to, say, put something on the
ValueStack that implements this interface /other/ than the Action itself
or something like that?

Any ideas or best practices anyone could suggest?

Thanks,
- -chris
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