[infinispan-dev] Query module new API and configurations

[Manik Surtani]

On 25 Aug 2009, at 12:31, Emmanuel Bernard wrote:

>>
>> is that to create a lucene query then you need to do the work of  
>> creating up a QueryParser and stuff like that. This is the bit that  
>> I'd like to avoid.
>
> I agree with ou it's annoying (though you don't need a QP  
> necessarily). I do think the DSL approach will work best.

A DSL would work, but I'd rather not define our own language here.   
Which is why I asked for a standard.  Perhaps something based on SQL/ 
JPA-QL?  Or are you thinking  DSL specific to Lucene - which could be  
used by any/all of {Lucene, Hibernate Search, Infinispan}?  In which  
case the DSL should ideally be a Lucene project.

>> Is it too round-about / tricky / yucky if we the user is to provide  
>> the specific class of the query? Or is that what you were  
>> suggesting anyway Manik?
>>
>> e.g.: -
>> 		CacheQuery cq = new  
>> QueryFactory 
>> (cache).getQuery(org.apache.lucene.query.BooleanQuery.class);
>
> Well but then how do you pass each side which are Lucene queries  
> themselves.

Yeah just the class isn't enough.  The class would need to be "set up"  
appropriately, and how you "set up" the query is different for  
different instances.

Cheers
--
Manik Surtani
manik at jboss.org
Lead, Infinispan
Lead, JBoss Cache
http://www.infinispan.org
http://www.jbosscache.org




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