User Input Validation in Axis2

Hi,

I have developed a webservice in axis2.0 with ADB and JiBX technique.
Now I don't know how to validate the user input. So please
help me out with this issue if anybody has done validation with axis2.

I tried putting validate.mar file in web-inf/modules directory of axis2
and changing the services.xml file accordingly but it is not working.

I reffered the links http://www.sosnoski.com/jibx-wiki/space/axis2-jibx/validation
but I don't know why it is not coming up.

Waiting for the reply,

Regards,
Nitin