spectrum of Lucene queries in solr?

[Paul Libbrecht <pa...@activemath.org>]

Hello list,

I am surprised not to find any equivalent to the classical Lucene  
queries in Solr... I must have badly looked...
E.g. where can I get a BooleanQuery, a PrefixQuery, a FuzzyQuery, or  
even a few spanqueries?

thanks in advance

paul

Re: spectrum of Lucene queries in solr?

[Chris Hostetter <ho...@fucit.org>]

: Sorry, I just realized I can use SolrIndexSearcher.search(Query, Hit)...
: 
: that was my question basically.

I wouldn't recommend it ... those methods bypass all of the goodness Solr 
adds on top of of Lucene (caching, etc...)

if you're writing plugin/embedded code where you have access to the 
SOlrIndexSearcher stick with the methods that return a DocList or DocSet 
(or DocListAndDocSet) .. you can still pass them Query objects, and you'll 
get all of the Solr goodness.



-Hoss

Re: spectrum of Lucene queries in solr?

[Paul Libbrecht <pa...@activemath.org>]

Sorry, I just realized I can use SolrIndexSearcher.search(Query, Hit)...

that was my question basically.

paul


Le 02-avr.-09 à 03:31, Erik Hatcher a écrit :

> Paul,
>
> I'm not sure I understand what you're looking for exactly.  Solr  
> supports Lucene's QueryParser by default for /select?q=... so you  
> get the breadth of what it supports including boolean, prefix,  
> fuzzy, and more.  QueryParser has never supported span queries  
> though.  There is also a dismax parser available (&defType=dismax to  
> enable it), and numerous other parser plugins.  Queries with Solr  
> aren't created from the client as a Query object, but rather some  
> string parameters come from the client that are then used to build a  
> Query on the server side.
>
> You can also add your own QParserPlugin to build custom Lucene Query  
> objects however you like.
>
> 	Erik
>
>
> On Apr 1, 2009, at 6:34 PM, Paul Libbrecht wrote:
>> I am surprised not to find any equivalent to the classical Lucene  
>> queries in Solr... I must have badly looked...
>> E.g. where can I get a BooleanQuery, a PrefixQuery, a FuzzyQuery,  
>> or even a few spanqueries?
>>
>> thanks in advance
>>
>> paul
>

Re: spectrum of Lucene queries in solr?

[Erik Hatcher <er...@ehatchersolutions.com>]

Paul,

I'm not sure I understand what you're looking for exactly.  Solr  
supports Lucene's QueryParser by default for /select?q=... so you get  
the breadth of what it supports including boolean, prefix, fuzzy, and  
more.  QueryParser has never supported span queries though.  There is  
also a dismax parser available (&defType=dismax to enable it), and  
numerous other parser plugins.  Queries with Solr aren't created from  
the client as a Query object, but rather some string parameters come  
from the client that are then used to build a Query on the server side.

You can also add your own QParserPlugin to build custom Lucene Query  
objects however you like.

	Erik


On Apr 1, 2009, at 6:34 PM, Paul Libbrecht wrote:
> I am surprised not to find any equivalent to the classical Lucene  
> queries in Solr... I must have badly looked...
> E.g. where can I get a BooleanQuery, a PrefixQuery, a FuzzyQuery, or  
> even a few spanqueries?
>
> thanks in advance
>
> paul