ISOGEN XML Query Results

[David Kendig <dk...@gcmd.nasa.gov>]

I'm trying a compound query using ISOGEN's XML package for Lucene and I am 
consistently getting 0 hits when I know ahead of time I should be getting one 
hit.  

This query returns lots of hits.

query1 = nodetype:ALL_CONTENT  AND content:foobar

This query is structured to return one known hit that is returned from query1 
that has <Start_Date>19900509</Start_Date>. 

query2 = tagname:Start_Date AND content:19900509

The problem is that query1 and query2 work fine individually until I combine 
them with an 'AND'.  Then it returns 0 hits.

query3 =  ( tagname:Start_Date AND content:19900509 ) AND ( 
nodetype:ALL_CONTENT  AND content:foobar)

If the same document is returned in query1 and in query2, why wouldn't it be 
returned with query3?

Thanks for any help,

Dave

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Re: Lucene and XML

[David Kendig <dk...@gcmd.nasa.gov>]

Rob 

I found it under the Lucene 'contributions' page on the main web site. 
Apparently ISOGEN is a commercial company that open sourced their XML 
extention to Lucene.  It seems to be very nice and thought out but I do 
wonder who maintains the contributed code. 

Dave



> Hello all,
>
> 	I did not know there were packages like ISOGEN that used Lucene to build a
> searchable index based on XML files.  From visiting ISOGEN's website it
> looks like it is a commercial software, are there any open source
> extensions to Lucene that allow XML indexing and searching?
>
> 	Please let me know.
>
> Thanks again,
>
> Rob


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Lucene and XML

[Rob Outar <ro...@ideorlando.org>]

Hello all,

	I did not know there were packages like ISOGEN that used Lucene to build a
searchable index based on XML files.  From visiting ISOGEN's website it
looks like it is a commercial software, are there any open source extensions
to Lucene that allow XML indexing and searching?

	Please let me know.

Thanks again,

Rob


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