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From Andi Vajda <>
Subject Re: SpanScorer Not implemented Error
Date Tue, 28 Apr 2009 05:48:36 GMT

On Tue, 28 Apr 2009, Max Lynch wrote:

> I am trying to get a list of all terms that matched a document.  So, if I
> search for "John Smith", I want to know if I found "John Smith" specifically
> in the document.  I can use the lucene results but I need to do more
> processing based on exactly what was found.  I am using a highlighter and
> formatter for this, but if I use the QueryScorer it breaks up the phrase
> into "John" and "Smith", but only if the whole name was found.  I have
> uncovered that maybe the SpanScorer would preserve the whole phrase, but
> when I try to use it I get NotImplementedError.  Has it not been interfaced
> yet?  Is it a difficult thing to do?

If you are trying to use the highlighter package's SpanScorer class, there 
may be a problem with it clashing (by name) with the class:

   >>> import lucene
   >>> lucene.initVM(lucene.CLASSPATH)
   >>> lucene.SpanScorer.class_
   <Class: class>

But without a specific example of what you're trying to do, it's mostly 
just guesswork here.

If I guessed this right, enhancing JCC so that specific classes involved in 
a name clash can be renamed in Python (because java packages are flattened 
out in Python, yet not in the underlying generated C++) shouldn't be too 

Could you please include a piece of code that reproduces the problem ?
Thanks !


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