If I get elmer fudd's question correct, he needs something like creating his 
own component which will extends SearchComponent and do some logic in prepare 
method - change input request params probably. Then register this component in 
solrconfig and set it's for default search handler just before query component 
like:

    <arr name="components">
      <str>newComponentName</str>
      <str>query</str>
      <str>facet</str>
      <str>mlt</str>
      <str>highlight</str>
      <str>debug</str>
    </arr>

Lucene's search in query component will be executed with modified parameters.

26.12.2013, 20:55, "Paul Libbrecht" <p...@hoplahup.net>:
> I have subclassed the query component to do so.
> Using params, you can get almost everything thinkable that is not too much 
> documented.
>
> paul
>
> On 26 déc. 2013, at 15:59, elmerfudd <na...@012.net.il> wrote:
>
>>  I would like to develope a search handler that is doing some logic and then
>>  just sends the query to the default search handler so the results will be
>>  generated there.
>>  It's like it is a transparent plugin and the data will only go through it.
>>
>>  How can this be achieved .
>>  thanks ahead :)
>>
>>  --
>>  View this message in context: 
>> http://lucene.472066.n3.nabble.com/Chaining-plugins-tp4108239.html
>>  Sent from the Solr - User mailing list archive at Nabble.com.

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