mandatory and optional fields in the dismaxrequesthandler

[[EMAIL PROTECTED]]

Hello,

Is it possible to specify precisely one or more mandatory fields in a 
DismaxRequestHandler?

Something like that:

 <requestHandler name="dismax" class="solr.DisMaxRequestHandler" >
   <lst name="defaults">
    <str name="echoParams">explicit</str>
    <float name="tie">0.01</float>
    <str name="qf">
       text^0.5 features^1.0 name^1.2 sku^1.5 id^10.0 manu^1.1 cat^1.4
    </str>
    <str name="pf">
       text^0.2 features^1.1 name^1.5 manu^1.4 manu_exact^1.9
    </str>

    <str name="bla>
      +text +feature name manu
   <str>

where 'text' and 'feature' are mandatory and 'name' and 'manu' are 
optional fields.


Regards,

Arno.