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From Ian Lea <ian....@gmail.com>
Subject Re: QueryParser and BooleanQuery
Date Mon, 23 Jul 2012 13:10:22 GMT
QueryParser returns a query.  Just add that to the BooleanQuery.

QueryParser qp = ...;
BooleanQuery bq = new BooleanQuery();
Query parsedq = qp.parse("...);
bq.add(parsedq, ...);



--
Ian.


On Mon, Jul 23, 2012 at 1:16 PM, Deepak Shakya <justdpk@gmail.com> wrote:
> Hey Jack,
>
> Can you let me know how should I do that? I am using the Lucene 3.6 version
> and I dont see any parse() method for StandardAnalyzer.
>
>
> On Mon, Jul 23, 2012 at 8:47 AM, Jack Krupansky <jack@basetechnology.com>wrote:
>
>> Yes, I failed to notice that the removal of the slash was yet another
>> instance of the analyzer transforming its input. But the bottom line is
>> that you must do 100% of the same steps that analysis performs. If in
>> doubt, pass your literals through the standard analyzer itself.
>>
>>
>> -- Jack Krupansky
>>
>> -----Original Message----- From: Deepak Shakya
>> Sent: Sunday, July 22, 2012 9:35 PM
>> To: java-user@lucene.apache.org
>> Subject: Re: QueryParser and BooleanQuery
>>
>>
>> I tried changing the case to lower case, but still the BooleanQuery doesn't
>> return any documents.
>>
>> I see that the text "/blank" is converted to "blank" in the QueryParser.
>> But in BooleanQuery it remains the same. When I remove the forward slash
>> sign from the input string, I get the matched documents with BooleanQuery.
>> Does the Standard Analyzer does this stripping of special characters as
>> well?
>>
>> On Sun, Jul 22, 2012 at 8:58 PM, Jack Krupansky <jack@basetechnology.com>*
>> *wrote:
>>
>>  The query parser/analyzer is lower-casing the query terms automatically.
>>> You have to do the same with with terms for BooleanQuery -
>>> Term("cs-method", "GET") should be "Term("cs-method", "get")".
>>>
>>> StandardAnalyzer is doing the lower-casing.
>>>
>>> -- Jack Krupansky
>>>
>>> -----Original Message----- From: Deepak Shakya
>>> Sent: Sunday, July 22, 2012 10:17 AM
>>> To: java-user@lucene.apache.org
>>> Subject: QueryParser and BooleanQuery
>>>
>>>
>>> Hi,
>>>
>>> I have following dataset indexed in Lucene.
>>> 2010-04-21 02:24:01 GET /blank 200 120
>>> 2010-04-21 02:24:01 GET /US/registrationFrame 200 605
>>> 2010-04-21 02:24:02 GET /US/kids/boys 200 785
>>> 2010-04-21 02:24:02 POST /blank 304 56
>>> 2010-04-21 02:24:04 GET /blank 304 233
>>> 2010-04-21 02:24:04 GET /blank 500 567
>>> 2010-04-21 02:24:04 GET /blank 200 897
>>> 2010-04-21 02:24:04 POST /blank 200 567
>>> 2010-04-21 02:24:05 GET /US/search 200 658
>>> 2010-04-21 02:24:05 POST /US/shop 200 768
>>> 2010-04-21 02:24:05 GET /blank 200 347
>>>
>>> I am querying it in two ways, first with QueryParser and other with
>>> BooleanQuery.
>>>
>>> *QueryParser version:*
>>>
>>> Query q = new QueryParser(version, "cs-method", new
>>> StandardAnalyzer(version)).****parse("cs-method:GET AND cs-uri:/blank");
>>>
>>>
>>> *BooleanQuery version:*
>>>
>>> BooleanQuery q = new BooleanQuery();
>>> q.add(new TermQuery(new Term("cs-method", "GET"),
>>> BooleanClause.Occur.SHOULD);
>>> q.add(new TermQuery(new Term("cs-uri", "/blank"),
>>> BooleanClause.Occur.SHOULD);
>>>
>>> When I run the two version, I am able to match the documents with the
>>> QueryParser version, but not with BooleanQuery. The output is as follows:
>>>
>>> *QueryParser output:*
>>>
>>> Total Number of Documents - 11
>>> Query --> +cs-method:get +cs-uri:blank
>>> Total Clues Found - 5
>>>
>>> *BooleanQuery output:*
>>>
>>> Total Number of Documents - 11
>>> Query --> cs-method:GET cs-uri:/blank
>>> Total Clues Found - 0
>>>
>>> Does anybody know why the BooleanQuery doesn't return any documents while
>>> QueryParser does? Also, how can I change the BooleanQuery to work for the
>>> above case?
>>>
>>> --
>>> With Regards,
>>> Deepak Shakya
>>>
>>> ------------------------------****----------------------------**
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>>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.****apache.org<
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>>>
>>>
>>
>> --
>> With Regards,
>> Deepak Shakya
>> http://www.google.com/**profiles/justdpk<http://www.google.com/profiles/justdpk>
>>
>> ------------------------------**------------------------------**---------
>> To unsubscribe, e-mail: java-user-unsubscribe@lucene.**apache.org<java-user-unsubscribe@lucene.apache.org>
>> For additional commands, e-mail: java-user-help@lucene.apache.**org<java-user-help@lucene.apache.org>
>>
>>
>
>
> --
> With Regards,
> Deepak Shakya
> http://www.google.com/profiles/justdpk

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