RE: About SolrJ for XML

[Chaitali Gupta <ch...@yahoo.com>]

Hi, 

Thanks a lot. It worked!! 

I was wondering if there is a way in SolrJ to print out the size of the index being generated? Or else how do I determine the total size of the generated index ?

Thanks, 
Chaitali 


--- On Mon, 10/5/09, Feak, Todd <To...@smss.sony.com> wrote:

From: Feak, Todd <To...@smss.sony.com>
Subject: RE: About SolrJ for XML
To: "solr-user@lucene.apache.org" <so...@lucene.apache.org>
Date: Monday, October 5, 2009, 5:17 PM

It looks like you have some confusion about queries vs. facets. You may want to look at the Solr wiki reqarding facets a bit. In the meanwhile, if you just want to query for that field containing "21"...

I would suggest that you don't set the query type, don't set any facet fields, and only set the query. Set the query to "field:21" where "field" should be replaced with the fieldname that has a "21" in it.

For example, if the field name is foo, try this instead:

SolrQuery query = new SolrQuery();
query.setQuery("foo:21");  
QueryResponse qr = server.query(query);
SolrDocumentList sdl = qr.getResults();


To delve into more detail, what your original code did was query for a "21" in the default field (check your solrconfig.xml to see what is default). It then faceted the query results by the "id" field and "weight" fields. Because there were no search results at all, the faceting request didn't do anything. I'm not sure why you switched the query type to DisMax, as you didn't issue a query that would leverage it.

-Todd

-----Original Message-----
From: Chaitali Gupta [mailto:chaitaligupta80@yahoo.com] 
Sent: Monday, October 05, 2009 2:05 PM
To: solr-user@lucene.apache.org
Subject: About SolrJ for XML 

Hi, 

I am new in Solr. I am using Solr version 1.3 

I would like to index XML files using SolrJ API. I have gone through solr mailing list's emails and have been able to index XML files. But when I try to query on those files using SolrJ, I get no output. Especially, I do not find correct results for numeric fields that I have specified in the schema.xml file in the config directory for my XML files. I have made those fields "indexed" and "stored" by using "indexed=true" and "stored=true". I am using the following code  in order to search for data (In the following code, I am trying to find out weight with values 21) - 

 SolrQuery query = new SolrQuery();
 query.setQueryType("dismax");
 query.setFacet(true);
 query.addFacetField("id");
 query.addFacetField("weight");
 query.setQuery("21");  
 QueryResponse qr = server.query(query);
 SolrDocumentList sdl = qr.getResults();

Am I doing anything wrong? Why do I get zero results even when there is a XML file with weight being 21. What are the other ways of doing the numeric queries in SolrJ ? 

Also, I would like to know how do I get the exact size of the index being generated by Solr. I am using a single machine to generate and query the index. When I look at the index directory, I see that the size of the files in the index directory is much lesser than the size reported by the "total" column in "ls -lh" command. Does anyone have any idea why is it the case? 

Thanks in advance. Waiting for your reply soon. 

Regards
Chaitali