QueryFilter usage

[Anna Putnam <an...@sendmemobile.com>]

Hi all,

 

I am new to Lucene so I apologize if this is a really easy question.  I
am having trouble using the QueryFilter class.  

 

Basically, I want to narrow my search results, getting hits only for a
particular category.

 

This is what I've tried (getting no results)

 

String line ="justin";

Query query = parser.parse(line);

System.out.println("Query: " + query.toString());

Term t = new Term("category", "Pop");

TermQuery tq = new TermQuery(t);

QueryFilter qf = new QueryFilter(tq);

System.out.println("Filtered Query: " + fq.toString());

      

fq = new FilteredQuery(query, qf);

 

search(fq);

 

My debug gives the following:

 

Query: author:justin title:justin

Filtered Query: filtered(author:justin
title:justin)->QueryFilter(category:Pop)

 

If I call search(query) I get full results so I know "category" is
indexed.

 

Any help would be greatly appreciated.

 

-Anna

 

Re: QueryFilter usage

[Wayne Graham <ws...@wm.edu>]

While I too am still learning, I ran into this last week.

Try this:

String line = "justin";

Query query = parser.parse(line);

TermQuery tq = new TermQuery(new Term("category", "Pop"));

Filter qf = new QueryFilter(tq);

Hits hits = search(query, qf);

HTH,
Wayne

Anna Putnam wrote:
> Hi all,
> 
>  
> 
> I am new to Lucene so I apologize if this is a really easy question.  I
> am having trouble using the QueryFilter class.  
> 
>  
> 
> Basically, I want to narrow my search results, getting hits only for a
> particular category.
> 
>  
> 
> This is what I've tried (getting no results)
> 
>  
> 
> String line ="justin";
> 
> Query query = parser.parse(line);
> 
> System.out.println("Query: " + query.toString());
> 
> Term t = new Term("category", "Pop");
> 
> TermQuery tq = new TermQuery(t);
> 
> QueryFilter qf = new QueryFilter(tq);
> 
> System.out.println("Filtered Query: " + fq.toString());
> 
>       
> 
> fq = new FilteredQuery(query, qf);
> 
>  
> 
> search(fq);
> 
>  
> 
> My debug gives the following:
> 
>  
> 
> Query: author:justin title:justin
> 
> Filtered Query: filtered(author:justin
> title:justin)->QueryFilter(category:Pop)
> 
>  
> 
> If I call search(query) I get full results so I know "category" is
> indexed.
> 
>  
> 
> Any help would be greatly appreciated.
> 
>  
> 
> -Anna
> 
>  
> 
> 

-- 
/**
 * Wayne Graham
 * Earl Gregg Swem Library
 * PO Box 8794
 * Williamsburg, VA 23188
 * 757.221.3112
 * http://swem.wm.edu/blogs/waynegraham/
 */


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Re: QueryFilter usage

[James Rhodes <jr...@gmail.com>]

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