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From Grant Ingersoll <grant.ingers...@gmail.com>
Subject Re: Using Lucene to search log files
Date Mon, 11 Dec 2006 17:18:03 GMT
Span Queries also return positional information

On Dec 11, 2006, at 12:12 PM, Steven Rowe wrote:

> abdul aleem wrote:
>> How to actually retrieve the content of search,
>>
>> Most of the examples in Lucene in Action
>> Searcher gives the results found in number of
>> documents
>>
>> but i coudln't find an API to retrieve the line or
>> paragraph where the search is matched
>
> Hi Abdul,
>
> I don't know what your log files look like -- how have you defined  
> your
> Lucene document?  The document is the only level of granularity
> available for returning hits in Lucene.
>
> Something you should look at, though, is Mark Harwood's Highlighter
> package, which is part of the Lucene Sandbox.  This package can be  
> used
> to break documents into fragments, to score those fragments based on a
> supplied query, and then to highlight the terms from the query.  Below
> is a link to the API docs:
>
> http://lucene.apache.org/java/docs/api/org/apache/lucene/search/ 
> highlight/package-summary.html
>
> You can find a description of using this package in "Lucene in  
> Action",
> in Section 8.7.
>
> The Highlighter distribution .jar is packed inside of  
> lucene-2.0.0.zip,
> available from Apache mirrors:
>
> http://www.apache.org/dyn/closer.cgi/lucene/java/
>
> Also, the JUnit tests are a good place to see how to use this package:
>
> https://svn.apache.org/repos/asf/lucene/java/trunk/contrib/ 
> highlighter/src/test/org/apache/lucene/search/highlight/ 
> HighlighterTest.java
>
> Hope it helps,
> Steve
>
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------------------------------------------------------
Grant Ingersoll
http://www.grantingersoll.com/



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