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From "Luke Shannon" <lshan...@futurebrand.com>
Subject Re: Optional Terms in a single query
Date Mon, 21 Feb 2005 23:51:42 GMT
Hi Tod;

Thanks for your help.

I was able to do what you said but in a much uglier way using a Boolean
Query and adding Wildcard Queries.

The end result looks like this:

The query: +(type:138) +((-name:*tim* -name:*bill* -name:*harry*
+olfaithfull:stillhere))

But this one works as expected.

Thanks!

Luke
----- Original Message ----- 
From: "Todd VanderVeen" <tdv@part.net>
To: "Lucene Users List" <lucene-user@jakarta.apache.org>
Sent: Monday, February 21, 2005 6:26 PM
Subject: Re: Optional Terms in a single query


> Luke Shannon wrote:
>
> >The API I'm working with combines a series of queries into one larger one
> >using a boolean query.
> >
> >Queries on the same field get OR's into one big query. All remaining
queries
> >are AND'd with this big one.
> >
> >Working with in this system I have:
> >
> >arg = (mario luigi bobby joe) //i do have control of how this list is
> >created
> >
> >I pass this to the QueryParser:
> >
> >Query query1 = QueryParser.parse(arg, "name", new StandardAnalyzer());
> >Query query2 = QueryParser.parse("stillhere", "olfaithfull", new
> >StandardAnalyzer());
> >BooleanQuery typeNegativeSearch = new BooleanQuery();
> >typeNegativeSearch.add(query1, false, true);
> >typeNegativeSearch.add(query2, true, false);
> >
> >This is half the query.
> >
> >It gets AND'd with the other half, to create what you see below:
> >
> >+(type:181) +((-(name:tim name:harry name:bill) +olfaithfull:stillhere))
> >
> >What I am having trouble with is getting the QueryParser to create
> >this: -name:(tim bill harry)
> >
> >I feel like this is something simple, but for some reason I can't figure
it
> >out.
> >
> >Thanks,
> >
> >Luke
> >
> >
> >
> Is the API something you control?
>
> Lets call the other half of you query query3. To avoid the extra nesting
> you need to do the composition in a single boolean query.
>
> Query query1 = QueryParser.parse(arg, "name", new StandardAnalyzer());
> Query query2 = QueryParser.parse("stillhere", "olfaithfull", new
StandardAnalyzer());
> Query query3 = ....
>
> BooleanQuery finalQuery = new BooleanQuery();
> finalQuery.add(query1, false, true);
> finalQuery.add(query2, true, false);
> finalQuery.add(query3, true, false);
>
> Cheers,
> Todd VanderVeen
>
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