ZCML search - how to?

ZCML search - how to?

Hi there,
I don't quite get how you define specific search patterns using ZCML.
Say I want to get a list containing only Date2=="15/12/2014".

Here's what I tried:

<script type="text/zcml" elName="zc-component" id="firmwares" viewLinkName="List" params=""
appLinkName="iac-schedule" sharedBy="kfiram" adminuser="IAC" params="Date2=15/12/2014" >

I've tried substituting "=" with "==" or "?" or any number of different  thins, but no matter what I do, I always get the full list, and the params value is just ignored. 

Any help??